How to Fly to Europe From the US for Under $600 Roundtrip

The transatlantic market is unusually soft in 2026. US-to-Europe booking demand is down year-over-year on several major routes (industry data shows Frankfurt down roughly 36%, Barcelona down about 26%, Amsterdam down about 23%), and airlines have responded by maintaining or lowering prices rather than cutting capacity. That combination pushes floor prices down on nearly every European route.

A snapshot of real 2026 roundtrip floor prices on the cheapest US-to-Europe routes:

These are floor prices, not averages. Actual fares on any given day will be higher, but the presence of these floor prices across so many routes tells you what is achievable when you pay attention to alerts and are willing to move on flexible dates.

The cheapest way into Europe is rarely the city you want to end your trip in. It is a nearby gateway with heavier competition, a shorter transatlantic distance, or a low-cost carrier presence. The current 2026 short list:

The pattern: pick your continent first, then find the cheapest gateway city into that continent, then figure out how to get from the gateway to where you actually want to be. Onward European flights on Ryanair, Wizz Air, and easyJet often cost less than a New York taxi ride.

• Reykjavik (KEF). Icelandair still runs the cheapest gateway on many East Coast routes, with fares from $240 to $400. Free-stopover option lets you spend up to 7 days in Iceland at no extra fare cost. Onward flights from Reykjavik to mainland Europe are cheap on Icelandair and Wizz Air Malta.
• Dublin (DUB). Aer Lingus flies from JFK, BOS, LAX, MIA, ORD, and SFO with pre-clearance of US customs on the way home (which alone is worth $100 in avoided hassle). Roundtrip fares $272 to $390 in shoulder season. Onward to mainland Europe on Ryanair for as little as $20.
• London Gatwick or Stansted (LGW/STN). Norse Atlantic flies transatlantic to Gatwick from JFK, LAX, MIA, FLL, BOS, BWI, and ORD. Icelandair connects through Reykjavik to Stansted. Both undercut Heathrow fares by $150 to $300 on the same dates.
• Barcelona (BCN). LEVEL runs nonstop from JFK and MIA. Iberia via Madrid is often just as cheap. Fares from $270 to $600 depending on season.
• Paris CDG or Orly. Paris CDG appears on nearly every US-Europe search at $325 to $570 because five airlines compete on the route. French Bee flies nonstop from SFO and MIA to Paris Orly for $200-plus.
• Lisbon and Porto. TAP Air Portugal is the cheap-fare specialist here, with a free-stopover option in Lisbon or Porto of up to 10 days. Fares $325 to $600, and Porto is often $100 cheaper than Lisbon.
• Warsaw, Athens, and other Eastern European gateways. British Airways and Icelandair route travellers into Warsaw for under $260 in some months. Neos Air is worth checking for JFK to Málaga and Warsaw specifically.

Season matters more than day of the week for transatlantic pricing. The cheapest months to Europe from the US in 2026:

Avoid the peak months if you can. June, July, and August fares are typically 60 to 100% higher than January or February on the same route. December 20 through January 3 is the single most expensive window of the year on almost every transatlantic route.

If your dates are locked and fall inside peak season, the workaround is to move your gateway city. Peak-season Paris might be $900, but peak-season Warsaw might still be under $500.

• January, February, March. The single cheapest window of the year. Post-holiday demand collapse plus cold weather in most European destinations keeps fares 30 to 50% below summer peaks.
• Late September and October. Shoulder season. School holidays are over, summer crowds are gone, and weather in Southern Europe (Portugal, Spain, Italy, Greece) is still warm enough for coast trips.
• Early November through mid-December. Another cheap window before the Christmas spike takes off around December 20.

East Coast dominates transatlantic pricing for one structural reason: shorter flights cost airlines less. The four cheapest US departure cities to Europe in 2026:

Midwest and West Coast travellers face a $200-plus premium on average. If you live in Chicago, Dallas, Denver, or Los Angeles and are flexible on how you get to Europe, a positioning flight (see next section) often saves more than it costs.

• New York (JFK and EWR). The transatlantic capital. JFK serves 20+ European destinations nonstop, EWR is United's fortress hub with 15+ nonstops to Europe. Consistently the cheapest departure city.
• Boston (BOS). Nine European nonstops from BOS on Aer Lingus alone. JetBlue's Mint transatlantic launches from BOS. LEVEL flies BOS to Barcelona nonstop.
• Miami (MIA). Growing budget-carrier presence (LEVEL, French Bee, Neos Air, Norse Atlantic) makes MIA competitive for the East Coast southern half.
• Baltimore/Washington (BWI). Norse Atlantic still flies BWI-Gatwick after PLAY's exit; British Airways and Icelandair connect BWI to Europe. Prices similar to JFK on the same dates.

A positioning flight is a separate cheap ticket from your home city to a US hub with cheaper transatlantic fares. You then fly transatlantic on a second ticket. The math works when the sum of the two tickets is meaningfully cheaper than the direct fare from your home city.

Example. Denver to Paris on United costs $850 roundtrip in shoulder season. Denver to Newark on Frontier costs $120 roundtrip. Newark to Paris on French Bee or Norse Atlantic runs $400 roundtrip. Total: $520 for the same two-week trip, saving $330.

Rules that keep the strategy safe:

The strategy makes the most sense for travellers based in secondary cities where the East Coast premium is large: Denver, Salt Lake City, Nashville, Charlotte, Minneapolis, Portland, Sacramento. It saves less for travellers already based in a major hub.

• Leave at least 4 hours between the positioning flight arrival and the transatlantic departure. If the positioning flight is delayed and you miss the transatlantic, the second airline has no obligation to help. Our guide on your rights when a flight is delayed or cancelled covers this in depth.
• Fly the positioning leg the day before if possible, sleep in an airport hotel, and start the transatlantic fresh. This eats one night's hotel, but eliminates the missed-connection risk entirely.
• Pack in a personal item or a small carry-on. If the airlines have different bag policies (very likely on separate tickets), consolidating to one small bag eliminates bag-fee surprises. See our guide on US airline bag fees for the current fee schedule per carrier.
• Book the positioning flight last. Buy the transatlantic first (usually the more time-sensitive fare), then position around it.

The transatlantic budget-carrier market thinned dramatically in 2025. PLAY Airlines exited the US market entirely in October 2025 after failing to make its Iceland-hub model profitable. Norwegian Air Shuttle exited years earlier. Both created rescue-fare opportunities on adjacent carriers, most of which have expired.

The carriers still flying US-Europe budget routes in 2026:

Read the fine print on any budget transatlantic ticket. Norse Atlantic, French Bee, and LEVEL all charge separately for checked bags ($40 to $80 one-way), seat selection ($15 to $50), and meals ($10 to $25). The base fare is what makes them cheap; the extras are where the airline makes money. Add everything you need at booking to see the honest total, not at the gate.

• Norse Atlantic Airways. The current transatlantic budget leader. Routes from JFK, EWR, BOS, MIA, FLL, BWI, and ORD to London Gatwick, Paris, Oslo, Berlin, Rome, Athens, Barcelona, and Stockholm. Fares regularly $150 to $350 one-way, undercutting legacy carriers by $200 to $400.
• French Bee. Nonstop from SFO and MIA to Paris Orly. Fares from $200 one-way in shoulder season. Ultra-long-haul budget model with paid seat, bag, and meal.
• LEVEL. Nonstop from JFK and MIA to Barcelona. IAG-owned, so operationally more reliable than most low-cost transatlantic carriers. Fares from $270 roundtrip in shoulder season.
• Icelandair. Not strictly a budget carrier but often cheaper than legacies via Reykjavik. Free stopover in Iceland at no extra fare cost. Serves JFK, BOS, LAX, SEA, MIA, MSP, IAD, ORD.
• Aer Lingus. Legacy value carrier via Dublin. Free 7-day Dublin stopover. Pre-clears US customs in Dublin, so you skip the customs line at your US arrival airport.
• TAP Air Portugal. Free up-to-10-day stopover in Lisbon or Porto. Strong for onward connections to Spain, Italy, and Morocco.
• Azores Airlines. Free stopover in the Azores (Ponta Delgada). Fares from under $300 roundtrip on some routes.
• Condor. German leisure carrier flying BOS, JFK, LAX, SFO, SEA, ANC to Frankfurt, Düsseldorf, Hamburg, and Munich. Fares $350 to $700.

If you have a stash of transferable credit card points (Chase Ultimate Rewards, Amex Membership Rewards, Capital One Miles, Citi ThankYou Points), a US-to-Europe roundtrip in economy typically runs 30,000 to 60,000 points, plus $50 to $200 in taxes and carrier surcharges.

The best value redemptions in 2026:

Points-and-miles bookings pair well with the general strategy above: the same shoulder-season, cheap-gateway logic gives you better award availability, not just cheaper cash fares.

• Aeroplan (Air Canada). 35,000 points economy each way to Europe on Star Alliance partners (United, Lufthansa, Swiss, Aer Lingus). Transfer partner with Amex and Chase.
• Flying Blue (Air France / KLM). 25,000 points economy each way on promo rewards to Europe. Runs monthly promotions on specific routes. Transfer partner with Amex, Chase, Citi, and Capital One.
• Avios (British Airways, Iberia, Aer Lingus). 22,000 points economy each way to London or Dublin from East Coast hubs. Transfer partner with Amex and Chase.
• Turkish Miles & Smiles. 45,000 miles roundtrip business class to Europe on Star Alliance carriers. Best value in the entire loyalty ecosystem for premium cabins, if you can work the booking system.

The single move that saves more than any other is setting price alerts and reading them fast. Deals below $400 roundtrip appear and sell out inside a few hours, sometimes less. The travellers who catch them are the ones who see them first and act inside 30 minutes.

The alert stack:

Set at least Google Flights and one paid deal newsletter. When an alert lands and the price is inside your budget, book. Do not shop it around, do not wait a day to think about it. Mistake fares get corrected in hours.

• Google Flights price tracking. Free. Track by specific route or by flexible destination (“any dates for this route”). Email notifications on price movement.
• Skyscanner Everywhere. Free. Enter your home airport, leave the destination blank, and see a heat map of the world by lowest price. Useful for destination-flexible travellers.
• Going (formerly Scott’s Cheap Flights). Paid, with a free tier. Catches sub-$400 transatlantic deals reliably. Premium tier at $49/year is the best value alert service on the market.
• Thrifty Traveler. Paid, $80/year. Similar quality to Going with slightly better US regional coverage.
• Dollar Flight Club. Paid, free tier available. Focuses on East Coast gateway deals.

Sample deals that landed in 2026 and paid for anyone who was watching alerts:

The pattern: the biggest savings come from carriers you might not have considered (Neos Air, Wizz Air Malta) on routes you might not have thought of (Málaga instead of Madrid, Porto instead of Lisbon, Warsaw instead of Prague). Flexibility on gateway city unlocks the deepest deals.

• Norse Atlantic mistake fare: JFK to London Gatwick, $189 roundtrip in economy, published on a Wednesday morning in April 2026. Sold out in about 4 hours.
• Icelandair sale: East Coast to Reykjavik, $199 roundtrip, plus $100 to add on continuing service to Paris or Amsterdam via free stopover. Published in early January.
• Aer Lingus sale: JFK to Dublin, $267 roundtrip, September and October departures. Held for about 5 days before the fare rose.
• French Bee: SFO to Paris Orly, $299 roundtrip, February and March departures. Held for two weeks.
• Neos Air: JFK to Málaga, $257 roundtrip, July departures. New route so fare was seat-fill promotional. Ran for about 10 days.

ETIAS (European Travel Information and Authorisation System) is the EU pre-travel authorisation that will eventually be required for US citizens visiting Europe. It is not yet in effect. The EU quietly removed its “last quarter of 2026” launch target from the official ETIAS website in July 2026 after eu-LISA (the agency building it) internally concluded a 2026 launch is no longer feasible. A 2027 launch is now the most likely outcome, with an exact date to be announced several months in advance.

For any trip to Europe in the rest of 2026, US and Canadian citizens still travel visa-free, passport-only. When ETIAS does launch, the fee is expected to be around €20 (roughly $22 USD), the authorisation will be valid for 3 years or until your passport expires, and processing will be near-instant for the vast majority of applicants. Add it to your “before you book Europe” checklist for 2027 and beyond, but it is not a factor in your 2026 trip.