Finnair or SAS: Which Is Better in 2026?

Finnair and SAS Scandinavian Airlines are Nordic flag carriers operating from neighboring countries with opposite alliance memberships in 2026. Finnair has been in oneworld since 1999 and operates from Helsinki Vantaa. SAS exited Star Alliance on 31 August 2024 and joined SkyTeam on 1 September 2024 as part of the Air France-KLM investment package that restructured SAS ownership (Castlelake 32 percent, Danish government 26 percent, Air France-KLM just under 20 percent, Lind Invest 9 percent). The alliance switch puts SAS into a different loyalty ecosystem than Finnair and into the transatlantic Delta-Air France-KLM-Virgin Atlantic JV that SAS is joining.

The 2026 operational stories are very different. Finnair is rebuilding its Asia network around the Russian airspace closure that has cost it the 4-hour shortcut to Tokyo, Seoul, and Beijing since February 2022. Finnair has added fifth-freedom routes like Helsinki-Bangkok-Melbourne to maintain Asia-Pacific market presence despite the detour penalty. The last A350-900 from Finnair’s current order is arriving by end of 2026. SAS is restructuring its long-haul around Copenhagen as the primary hub and reducing long-haul service from Stockholm Arlanda, which Finnair has been opportunistically capturing via the Finnair Plus status match campaign for SAS EuroBonus members running April 2 through 30 September 2026.

For most travelers, the decision is alliance-driven. If you collect oneworld status with British Airways, American, Cathay, or Qatar, Finnair is the natural Nordic partner. If you collect SkyTeam status with Delta, Air France-KLM, Korean Air, or others, SAS is the new Nordic option. For Avios collectors who can transfer from Amex, Chase, Capital One, or Bilt, Finnair Plus offers cross-program Avios pool access that no SkyTeam Nordic program matches.

What We Looked For

• Alliance affiliation, the single most consequential difference between these two airlines in 2026
• Basic-fare carry-on rules, where Finnair Light includes the cabin bag and SAS Go Light strips it
• Loyalty program ecosystems, Avios pool for Finnair Plus versus SkyTeam reciprocity for SAS EuroBonus
• The Russian airspace closure impact on Finnair’s Asia network, including new fifth-freedom Melbourne routes
• The SAS ownership and SkyTeam transition mechanics, Air France-KLM 20 percent stake plus the upcoming transatlantic JV access
• Scandinavian network depth and hub structure, Helsinki versus the SAS three-hub Copenhagen/Stockholm/Oslo configuration
• Status match opportunities, the Finnair Plus campaign actively recruiting SAS EuroBonus Gold members through 30 September 2026

Are Finnair and SAS carry-on rules the same?

Functionally yes on Economy carry-on dimensions (both 55x40x23 cm / 8 kg). But Basic fares diverge: Finnair Light includes the cabin bag; SAS Go Light strips it to under-seat personal item only on short-haul.

Finnair carry-on by fare. All Economy fares allow one cabin bag at 55x40x23 cm (21.7x15.7x9.1 in) plus one personal item at 40x30x15 cm (15.7x11.8x5.9 in), with combined weight not exceeding 8 kg in Economy or 12 kg in Business. Economy Light (cheapest fare) includes the cabin bag plus personal item. Superlight fares (lowest tier on some routes) include only a small personal item.

SAS carry-on by fare. SAS Go (the cheaper standard Economy fare) includes one cabin bag at 55x40x23 cm plus a personal item at 40x30x15 cm, both 8 kg combined. SAS Go Light strips the cabin bag on short-haul; only the under-seat personal item is included free, with a paid cabin bag add-on at EUR 15-20.

Practical implication. For travelers booking the cheapest Economy fare on each airline, Finnair Light includes the cabin bag where SAS Go Light does not. This is the more meaningful Basic-fare difference. If you need a cabin trolley, Finnair Light costs less in real terms than SAS Go Light plus the paid carry-on add-on.

Personal item. Both airlines allow the same 40x30x15 cm personal item under-seat. A thin laptop bag fits both.

Winner: Economy weight limit

Tie / both 8 kg combined

Winner: carry-on dimensions

Tie / both 55x40x23 cm

Winner: Basic fare cabin bag

Finnair / Light includes; SAS Go Light strips

Winner: personal item

Tie / both 40x30x15 cm

Which airline has a better checked bag policy?

Roughly tied. Finnair Light and SAS Go Light both strip the checked bag. The included-bag fares are comparable. SAS’s time-based bag fee structure favors early bookers; Finnair’s standard online rate is competitive.

Finnair. Economy Classic and Economy Flex include 1 checked bag up to 23 kg / 51 lb at 62 linear inches. Economy Light and Superlight include NO checked bag. Online add-on fees start around EUR 27-50 depending on timing. Airport rates: EUR 60 for Finland-Europe routes, EUR 90-180 for other destinations. Max single bag 32 kg / 70 lb.

SAS. Go Smart and Go Pro include 1 checked bag up to 23 kg / 51 lb at 62 linear inches. SAS Go Light includes NO checked bag. Extra bag fees are time-based: about $40 USD more than 8 days before departure, up to $85 USD within 22 hours of departure. EuroBonus Silver and SkyTeam Elite members get +1 free bag on Light fares; Gold and Diamond get +2. Max single bag 32 kg / 70 lb.

Practical implication. Both airlines play the same Basic-strip game. SAS’s time-based pricing rewards committing to the bag at booking and penalizes last-minute additions. Finnair’s posted rates are flatter across the booking window but generally lower for committed bookers.

Status uplift. SAS’s EuroBonus status uplift is more generous: Silver gets +1 bag even on Light fares (free since April 2025), Gold gets +2. Finnair Plus status uplifts are similar but not as well-publicized.

Sports equipment. Both airlines count ski and golf as standard checked bags within allowance. Bikes carry a separate sports-equipment fee on both.

Winner: Basic fare strip

Tie / both exclude checked bag on cheapest

Winner: Classic/Smart with bag included

Tie / 1 x 23 kg at standard 158 cm linear

Winner: time-based pricing

Slight edge to SAS / rewards early booking

Winner: status uplift on bags

SAS EuroBonus / Silver +1, Gold +2 even on Light

Which airline has a better cabin product?

Roughly tied. Finnair operates the A350-900 long-haul fleet with a competitive business class. SAS has a smaller long-haul fleet now restructured around Copenhagen as primary hub. Both run competent Premium Economy and Business cabins.

Finnair A350-900. Finnair’s flagship long-haul aircraft, with the last A350-900 from the current order book arriving by end of 2026. Configuration: AirLounge business class (a 1-2-1 layout where the seat is a non-converting hard shell with a separate mattress for sleep mode, a novel design Finnair adopted in 2022), Premium Economy in a dedicated cabin, and Economy at around 31-32 inches of pitch. The AirLounge concept is polarizing: some travelers love the increased personal space, others miss the traditional convertible seat that reclines into a bed.

SAS A350 / A330 long-haul. SAS Business is a 1-2-1 lie-flat staggered configuration on long-haul. The cabin is competent but mid-refresh after the restructuring period. SAS Plus is the Premium Economy product. Standard Economy at around 31 inches of pitch. SAS is consolidating long-haul around Copenhagen, with reduced frequencies from Stockholm Arlanda in 2026.

Short-haul. Both airlines fly A320/A321 narrowbody on intra-European routes with the standard European Economy and short-haul Business cabin (blocked middle seat, no separate physical Business cabin). Pitch around 30-31 inches in Economy.

On-time performance and operational stability. SAS has been operationally stable post-restructuring with capacity discipline. Finnair has been managing the Russian airspace closure with operational consistency despite the longer flight times. Neither airline is in the global top tier for punctuality but both meet European norms.

Winner: long-haul Business hardware

Roughly tied / different design philosophies; both 1-2-1

Winner: Premium Economy

Tie / dedicated cabin on both

Winner: AirLounge business concept

Finnair / novel non-converting hard-shell

Winner: short-haul Business

Tie / standard European blocked-middle

Which airline has a broader network?

Different geographies. Finnair owns the Helsinki-to-Asia corridor (despite the Russian airspace detour penalty). SAS dominates intra-Scandinavian and runs Copenhagen-centric transatlantic and Asia routes.

Finnair. Hub at Helsinki Vantaa. Long-haul focused on Asia: Beijing, Tokyo (Narita and Haneda), Seoul, Singapore, Bangkok, Hong Kong, Osaka, Nagoya, Mumbai, Delhi, plus the new Melbourne via Bangkok fifth-freedom service added in 2026. North America: New York-JFK, Miami, Los Angeles, Chicago, Dallas, Seattle (seasonal). Europe is dense with intra-Nordic and major European city coverage. The Helsinki hub has lost its 4-hour shortcut advantage to Asia since 2022 but remains a major Asia connection point for Western European travelers.

SAS. Three primary hubs: Copenhagen-Kastrup (CPH) as the consolidating primary, Stockholm-Arlanda (ARN), and Oslo-Gardermoen (OSL). Long-haul: Chicago, New York-JFK, Newark, Washington-IAD, Boston, Miami, Los Angeles, San Francisco from Scandinavia. Asia: Tokyo, Shanghai, Bangkok, Singapore. SAS has reduced long-haul service from Stockholm during the 2026 restructuring, consolidating around Copenhagen. The intra-Scandinavian network is dominant: SAS connects every major city in Denmark, Sweden, Norway, plus Iceland and the Faroe Islands.

For US travelers. Both airlines connect the US to Nordic Europe with multiple daily flights. Finnair’s onward Asian connections from Helsinki are deeper than SAS’s onward Asia from Copenhagen. SAS’s onward European connections from Copenhagen are deeper than Finnair’s onward Europe from Helsinki.

Codeshares. Finnair codeshares deeply with American Airlines, British Airways, Iberia, Qatar, Cathay, JAL within oneworld. SAS now codeshares with Delta, Air France-KLM, Korean Air within SkyTeam, with deeper integration coming via the Delta-AF-KLM-Virgin Atlantic transatlantic JV.

Winner: Helsinki-to-Asia network

Finnair / deep Tokyo/Seoul/Beijing coverage despite detour

Winner: Intra-Scandinavian network

SAS / three hubs across DK/SE/NO

Winner: Transatlantic US gateways

Tie / both serve major US cities

Winner: Codeshare partner depth

Tie / oneworld for Finnair, SkyTeam for SAS

Is Finnair Plus or SAS EuroBonus a better loyalty program?

Finnair Plus for cross-program Avios flexibility. SAS EuroBonus for SkyTeam integration. Both reward Nordic frequent flyers but in different ecosystems.

Finnair Plus. Loyalty currency is Avios, fully pooled 1:1 with British Airways Club, Iberia Plus, Aer Lingus AerClub, Qatar Privilege Club, Vueling Club, and Loganair Loyalty at no fee and no limit. This is one of the most flexible European loyalty currencies. Status tiers Junior, Basic, Silver, Gold, Platinum, and Platinum Lumo (the latter being the highest internal tier). Silver and Gold confer oneworld Sapphire and Emerald benefits respectively. Finnair Plus is actively recruiting via a status match campaign for SAS EuroBonus Gold members (April 2-23 booking window, travel April 2-30 September 2026, requires one Finnair-marketed/operated flight to/from Sweden).

SAS EuroBonus. Post-September-2024, this is a SkyTeam program. Status tiers EuroBonus Silver, Gold, and Diamond, with reciprocal earning and benefits across Delta SkyMiles, Air France-KLM Flying Blue, Korean Air SKYPASS, and the rest of SkyTeam. SAS will join the Delta-Air France-KLM-Virgin Atlantic transatlantic JV, opening deeper US-Europe redemption options through SAS metal. EuroBonus has its own currency (EuroBonus Points) that does not pool 1:1 with other SkyTeam programs.

For US-based members. Finnair Plus via Avios benefits from US credit card transfer partners: Amex Membership Rewards, Chase Ultimate Rewards, Capital One Miles, and Bilt Rewards all transfer to British Airways Avios, which can then be pooled to Finnair Plus. SAS EuroBonus has fewer direct US credit card transfer paths; SkyMiles via Amex is the primary indirect route.

Status match opportunity. The Finnair Plus to SAS EuroBonus status match (Gold to Gold) is currently the most attractive Nordic loyalty arbitrage of 2026 for travelers planning Sweden-bound trips between April and September. Booking one Finnair-marketed/operated flight to/from Sweden between April 2 and 23 unlocks the match through 30 September 2026.

Winner: Loyalty currency flexibility

Finnair Plus / Avios pool with 6 other programs

Winner: SkyTeam integration

SAS EuroBonus / post-1-Sep-2024 transition

Winner: US credit card transfer paths

Finnair Plus / Amex/Chase/CapOne/Bilt via BA Avios

Winner: Transatlantic JV access (upcoming)

SAS EuroBonus / Delta-AF-KLM-Virgin Atlantic JV joining

Who Should Pick Finnair

• You hold or want oneworld status (Sapphire or Emerald) with reciprocity across British Airways, American, Cathay, JAL, Qatar
• You collect Avios via Amex Membership Rewards, Chase Ultimate Rewards, Capital One Miles, or Bilt and want a flexible European loyalty currency
• You are flying to East Asia (Tokyo, Seoul, Beijing, Hong Kong) from Western Europe and accept the post-2022 detour penalty as part of the trip
• You want to try the new Helsinki-Bangkok-Melbourne fifth-freedom service added in 2026
• You are flying Economy on the cheapest fare and want the cabin bag included (Finnair Light includes; SAS Go Light strips)
• You can take advantage of the Finnair Plus status match for SAS EuroBonus Gold members through 30 September 2026
• You appreciate the AirLounge business class hard-shell design (or want to try a novel non-converting business seat)

Who Should Pick SAS Scandinavian Airlines

• You hold or want SkyTeam status (Elite, Elite Plus) with reciprocity across Delta, Air France-KLM, Korean Air
• You are flying intra-Scandinavia (Copenhagen-Stockholm, Oslo-Stockholm, Copenhagen-Bergen, etc.) where SAS has the densest network
• You want to credit SAS flights to Delta SkyMiles for transatlantic JV access
• You collect EuroBonus status and value the +1 free bag for Silver and +2 for Gold even on Light fares
• You are flying Copenhagen-to-US where SAS has its strongest transatlantic positioning under the post-2024 consolidation
• You want to be on a SkyTeam carrier joining the Delta-Air France-KLM-Virgin Atlantic transatlantic JV
• You prefer a traditional convertible lie-flat Business seat over Finnair’s AirLounge non-converting design

The Bottom Line

Finnair and SAS are now in different alliances. That single fact drives the 2026 decision more than any cabin product or pricing comparison. If you are a oneworld loyalist or an Avios collector, Finnair is the natural Nordic partner. If you are a SkyTeam loyalist or a Delta SkyMiles collector, SAS is now the right Nordic option.

The Russian airspace closure has reshaped Finnair’s competitive position by removing the 4-hour Tokyo shortcut, but Finnair has rebuilt the network around the new realities with the Melbourne via Bangkok fifth-freedom and continued A350-900 fleet expansion. Finnair is fighting for relevance in a post-shortcut world and doing it reasonably well.

SAS has been restructured into a SkyTeam carrier under Air France-KLM influence and is consolidating long-haul around Copenhagen as the primary hub. The SkyTeam transition gives SAS access to Delta SkyMiles’ US-Europe redemption ecosystem and the upcoming transatlantic JV. SAS is rebuilding for the next decade with new ownership and a new alliance home.

For US travelers, the Avios pool argument is the strongest single case for Finnair Plus over SAS EuroBonus. The Amex Membership Rewards / Chase Ultimate Rewards / Capital One Miles / Bilt Rewards transfer paths into British Airways Avios, then pooled to Finnair Plus, give Finnair members one of the more flexible European loyalty positions in 2026. SAS EuroBonus is improving its SkyTeam integration but does not match the Avios pool flexibility.

Watch the Finnair Plus to SAS EuroBonus status match through 30 September 2026 if you have Gold status with either program. Booking one Finnair-marketed/operated Sweden flight between April 2 and 23 unlocks the match, which is a meaningful arbitrage for travelers planning Nordic trips this summer.

For more European context, see Air France vs KLM, Iberia vs British Airways, and Lufthansa vs British Airways.