$199 Find Cheap Flights from Washington to Europe

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Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$199
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Portland to London Heathrow Airport

Flights from Washington to Europe: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Washington to Europe 
Verified travelerFlew with British AirwaysSEA-LHRApr 2025
Make sure you have plenty of time between flights if you are delayed.
Verified travelerFlew with LufthansaSEA-FRAApr 2024
If you don't have checked luggage, no need to be in a rush to line up. There will be a spot for your little carry-on rollie bag, so relax until the line is down to board the plane.
Verified travelerFlew with British AirwaysSEA-LHRApr 2024
Bring a sack lunch -- airport food was very expensive.

FAQs for booking flights from Washington to Europe

  • How does KAYAK find such low prices on flights from Washington to Europe?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Europe.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Europe?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Europe is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Europe?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to Europe with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Europe?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to Europe up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Europe?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Europe is London Heathrow Airport (LHR), with an average flight price of $522.

  • What is the cheapest day to fly to Europe?

    Based on KAYAK data, the cheapest day to fly to Europe is Tuesday where round-trip tickets can be as cheap as $822. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $955 on average.

  • What is the cheapest time of day to fly to Europe?

    The cheapest time of day to fly to Europe is generally at night, when round-trip flights cost $872 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to Europe is generally in the morning, which is peak travel time and where the average cost of a ticket is $980.

  • What is the cheapest flight to Europe?

    The cheapest ticket to Europe from Washington found in the last 72 hours was to Copenhagen, at $484 round-trip. The most popular route is Seattle (SEA) to London Heathrow Airport (LHR) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $527.

  • What is the cheapest month to fly from Washington to Europe?

    The cheapest month for flights from Washington to Europe is November, when tickets cost $716 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,346 and $1,164 respectively.

  • How far in advance should I book a flight from Washington to Europe?

    To get a below average price on the flight from Washington to Europe, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

  • How long is the flight to Europe?

    An average nonstop flight from Washington to Europe takes 12h 45m, covering a distance of 5127 miles. The shortest route is Seattle (SEA) to Reykjavik Keflavik Intl Airport (KEF) with an average flight time of 7h 30m.

  • What are the most popular destinations in Europe?

    Based on KAYAK flight searches, the most popular destination is London (30% of total searches to Europe). The next most popular destinations are Paris (12%) and Istanbul (6%). Searches for flights to Dublin (5%), to Rome (5%) and to Frankfurt am Main (4%) are also popular.

Book cheap flights from Washington to Europe

Recent round-trip flight deals

10/1mié.
1 stopLufthansa
13h 05mSEA-FRA
10/15mié.
1 stopLufthansa
13h 01mFRA-SEA
$329
7/6dom.
1 stopAir Canada
13h 10mSEA-KEF
7/15mar.
2 stopsAir Canada
15h 46mKEF-SEA
$375
8/21jue.
1 stopUnited Airlines
17h 50mSEA-KEF
8/29vie.
3 stopsUnited Airlines
44h 22mKEF-SEA
$397
8/21jue.
2 stopsUnited Airlines
25h 26mSEA-KEF
8/29vie.
3 stopsUnited Airlines
42h 48mKEF-SEA
$402
9/8lun.
1 stop
12h 50mSEA-FCO
9/30mar.
1 stop
13h 55mFCO-SEA
$421
9/14dom.
2 stops
18h 00mSEA-KEF
9/21dom.
1 stop
18h 30mKEF-SEA
$427
10/1mié.
1 stopScandinavian Airlines
15h 40mSEA-LHR
10/14mar.
2 stopsScandinavian Airlines
26h 10mLHR-SEA
$435
10/8mié.
1 stopScandinavian Airlines
15h 40mSEA-LHR
10/22mié.
1 stopScandinavian Airlines
15h 20mLHR-SEA
$438
8/3dom.
nonstopAer Lingus
9h 00mSEA-DUB
8/19mar.
nonstopAer Lingus
9h 40mDUB-SEA
$444
11/12mié.
nonstopAer Lingus
9h 05mSEA-DUB
11/26mié.
nonstopAer Lingus
9h 50mDUB-SEA
$458

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Recent one-way flight deals

10/1mié.
1 stopIcelandair
12h 35mPDX-LHR
$199
10/6lun.
1 stopIcelandair
21h 00mPDX-LHR
$205
7/9mié.
2 stops
38h 30mSEA-CDG
$232
7/9mié.
2 stops
38h 30mSEA-CDG
$233
10/6lun.
1 stopWestJet
18h 10mSEA-KEF
$257
9/18jue.
2 stopsWestJet
33h 36mSEA-KEF
$297
9/22lun.
2 stopsTAP AIR PORTUGAL
21h 00mSEA-FRA
$309
8/19mar.
1 stopJetBlue
13h 30mSEA-DUB
$363
7/23mié.
1 stopJetBlue
13h 52mSEA-LGW
$369
7/10jue.
2 stopsTAP AIR PORTUGAL
22h 00mSEA-FRA
$376

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Last minute flights from Washington to Europe

Last minute flight, train and bus deals

6/15dom.
multi-stopUnited Airlines
13h 40mSEA-KEF
7/10jue.
multi-stopUnited Airlines
34h 48mKEF-SEA
$404
6/13vie.
multi-stopUnited Airlines
11h 41mSEA-KEF
6/19jue.
multi-stopUnited Airlines
33h 59mKEF-SEA
$408
6/17mar.
multi-stopAir Canada
17h 50mSEA-KEF
6/27vie.
multi-stopAir Canada
18h 11mKEF-SEA
$410
6/14sáb.
multi-stopAir Canada
30h 00mSEA-KEF
6/28sáb.
multi-stopAir Canada
16h 06mKEF-SEA
$417
6/17mar.
multi-stop
17h 50mSEA-KEF
6/26jue.
multi-stop
22h 44mKEF-SEA
$433
6/15dom.
multi-stop
10h 15mSEA-KEF
6/21sáb.
multi-stop
13h 47mKEF-SEA
$534
6/14sáb.
multi-stopDelta
18h 00mSEA-KEF
6/23lun.
multi-stopDelta
16h 00mKEF-SEA
$535
6/14sáb.
multi-stopDelta
28h 20mSEA-KEF
6/19jue.
multi-stopDelta
13h 47mKEF-SEA
$539
6/13vie.
multi-stopLufthansa
22h 20mSEA-KEF
6/19jue.
multi-stopLufthansa
22h 44mKEF-SEA
$588
6/13vie.
multi-stopLufthansa
21h 45mSEA-KEF
6/17mar.
multi-stopLufthansa
22h 44mKEF-SEA
$619

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Everything you need to know for your flight to Europe

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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