How we know: Sources are listed at the end. Programme, route and fleet facts come from the cited references. Live fares are on the route pages; this post quotes none.
Icelandair's stopover is the oldest trick in transatlantic travel and still one of the best: on a ticket between North America and Europe, you can stop in Iceland for up to seven days at no additional airfare (Icelandair). Because Keflavík sits roughly halfway, the routing adds little flying time, and the airline's US network is broad.
How the stopover works
Icelandair has offered the stopover since the 1960s. You book a through-ticket from a US city to a European city via Keflavík, and instead of connecting the same day you choose to leave Iceland one to seven days later, on the outbound, the return, or both (Icelandair). The airfare is the same as a straight connection; you pay for your time on the ground.
To book: on Icelandair's site, search your US origin to your European destination and use the stopover option (or the multi-city tool) to set the number of nights in Iceland. Compare the fare with and without the stopover; it should be identical or very close. If a third-party site cannot show the stopover, book direct.
Where Icelandair flies from the US
US gateways include Boston, New York, Washington, Chicago, Seattle, Denver, Minneapolis, Orlando and others, with some cities seasonal and a few routes discontinued over time (Icelandair). All flights funnel through Keflavík (KEF), about 45 minutes from Reykjavík by bus. Check current fares on Boston to Reykjavík, JFK to Reykjavík, Seattle to Reykjavík, Chicago to Reykjavík and Denver to Reykjavík.
The aircraft and cabins
Icelandair flies Boeing 737 MAX 8 and MAX 9 aircraft alongside 757s and 767s (the latter being retired) and a growing fleet of Airbus A321LRs (Icelandair). These are narrow-body jets on five-to-seven-hour sectors; fine, but not a wide-body experience. Two cabins: Economy (complimentary soft drinks, buy-on-board food) and Saga Premium (2-2 seating, meals included) (Icelandair). Economy fares come in tiers that differ mainly in baggage and change rules.
Planning the days in Iceland
- Two to three days: Reykjavík, the Golden Circle (Þingvellir, Geysir, Gullfoss), and a lagoon (Blue Lagoon near the airport or Sky Lagoon near the city).
- Four to five days: add the south coast (Seljalandsfoss, Skógafoss, Reynisfjara, Vík) and, in summer, the glacier lagoon at Jökulsárlón.
- Seven days: the Ring Road is possible in summer but rushed; a south-and-west loop is more relaxed.
Season matters. Wikivoyage describes the northern-lights season as roughly September to April, when nights are dark, and the midnight-sun months of June and July as prime for road trips; highland roads open only in summer (Wikivoyage: Iceland). Winter stopovers are cheaper on the ground but weather can close roads at short notice; keep plans flexible.
Costs and practicalities
Iceland is expensive on the ground; that is where the "free" stopover costs you. Budget accordingly for lodging, food and a rental car, and book accommodation well ahead in summer. US citizens enter visa-free under Schengen rules for up to 90 days in any 180; your Iceland stopover counts toward that Schengen total along with the rest of your European trip.
Is it worth it?
Yes, if you want to see Iceland anyway and your European destination is one Icelandair serves. The fare is competitive, the routing is efficient, and the stopover is genuinely free on the airfare. It is less compelling if you are only chasing the lowest possible fare to a city another carrier flies nonstop; a connection through Keflavík is still a connection. For alternatives now that PLAY has ceased operations, see our budget airlines to Europe guide. For timing your visit, see best time to visit Iceland.
FAQ
Is the Icelandair stopover really free? The airfare does not increase for a stopover of up to seven days; ground costs are yours.
Can I do the stopover in both directions? Yes, subject to the seven-day maximum on each.
Which US cities have Icelandair flights? Boston, New York, Washington, Chicago, Seattle, Denver, Minneapolis and Orlando among others; some routes are seasonal.