Cheap flights from Washington to the United Kingdom from $218
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to the United Kingdom departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Washington to the United Kingdom that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington to the United Kingdom.
Cheap last minute flights
Planning a quick getaway from Washington to the United Kingdom? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to the United Kingdom, so you can enjoy a seamless trip without layovers.
Scandinavian Airlines flights from State of Washington to United Kingdom
Our best Scandinavian Airlines deals on State of Washington to United Kingdom flight tickets
Scandinavian Airlines![Scandinavian Airlines]()
May 24![Scandinavian Airlines]()
May 26
SEA4:00 pmSeattle/Tacoma Intl
16h 00m
1 stop
LHR4:00 pmLondon Heathrow
LHR6:40 amLondon Heathrow
15h 10m
2 stops
SEA1:50 pmSeattle/Tacoma Intl
Scandinavian Airlines![Scandinavian Airlines]()
May 24![Scandinavian Airlines]()
May 26
SEA4:00 pmSeattle/Tacoma Intl
16h 25m
2 stops
LHR4:25 pmLondon Heathrow
LHR6:40 amLondon Heathrow
15h 10m
2 stops
SEA1:50 pmSeattle/Tacoma Intl
Iberia flights from State of Washington to United Kingdom
Our best Iberia deals on State of Washington to United Kingdom flight tickets
Iberia![Iberia]()
Aug 24![Iberia]()
Sep 9
PDX7:25 pmPortland
9h 35m
LHR1:00 pmLondon Heathrow
LHR3:40 pmLondon Heathrow
9h 55m
PDX5:35 pmPortland
Iberia![Iberia]()
Sep 14![Iberia]()
Sep 24
PDX7:25 pmPortland
16h 15m
1 stop
EDI7:40 pmEdinburgh Turnhouse
EDI4:35 pmEdinburgh Turnhouse
33h 00m
1 stop
PDX5:35 pmPortland
See travel insights to the United Kingdom from
How to get the cheapest flight ticket from State of Washington to United Kingdom
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to United Kingdom?
In general, October is the cheapest month to fly from State of Washington to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $666. If you aren’t able to travel to United Kingdom during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $669.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from State of Washington to United Kingdom is on a Tuesday when prices can be found for as low as $833. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $979.
What is the cheapest time of day to depart on your flight to United Kingdom?
According to our data, the cheapest time of day to fly to United Kingdom is in the afternoon. momondo users have found flights departing from State of Washington to United Kingdom in the afternoon for as low as $895. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the morning, with an average ticket price of $980. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Washington to United Kingdom flight route?
Fly from Seattle/Tacoma Intl to London Heathrow for the best Washington - United Kingdom flight prices
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from State of Washington when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $820 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from State of Washington for as low as $782 on momondo.
What cabin class options are available on Washington to United Kingdom flights?
There are 4 cabin classes available to choose from on Washington to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Washington to United Kingdom?
Icelandair and WestJet are the most popular carriers operating from Washington to United Kingdom
What airlines fly to United Kingdom?
British Airways, Delta and Icelandair are the top three most popular airlines that fly to United Kingdom from State of Washington according to our data. British Airways is the first choice among our users, with 35% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 17 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
How many flights depart from State of Washington to United Kingdom on average per day?
29 flights are operational daily from State of Washington to United Kingdom as of May 2025. The most popular departure time for this route is 8:00PM, with 50% of flights per day taking off in the afternoon.
How many flights depart from State of Washington to United Kingdom on average per week?
203 flights are operational weekly from State of Washington to United Kingdom as of May 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
Cheap State of Washington to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from State of Washington to United Kingdom
Best Price Found | $218 |
|---|---|
Fastest flight time | 9h 20m |
Direct flights | Every day |
Airports in United Kingdom | 3 airports |
When did momondo last update prices for flights from Washington to United Kingdom?
Prices for flights from Washington to United Kingdom were last updated today.
How many operators does momondo search for flights from Washington to United Kingdom?
As of May 2025, there are 17 operators available to choose from for flights from Washington to United Kingdom.
How old do you have to be to fly from Washington to United Kingdom?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to United Kingdom?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from State of Washington to United Kingdom is Boeing 787-10 Dreamliner (32.05% of total bookings). The next most popular plane models are Airbus A330-900neo (31.09%), Boeing 777 (13.28%), and Boeing 777-300 (9.46%).
Best airlines flying from State of Washington to United Kingdom
Compare and see reviews for airlines that fly from State of Washington to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $378 | Free Cancellation | Rating 6.7 7,054 reviews | |||
| PriceFrom $500 | Free Cancellation | Rating 7.0 488 reviews | |||
| PriceFrom $550 | Free Cancellation | Rating 7.4 8,702 reviews | |||
| PriceFrom $568 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $579 | Free Cancellation | Rating 7.0 2,704 reviews | |||
| PriceFrom $583 | Free Cancellation | Rating 7.0 1,077 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 7.3 1,349 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 8.0 7,939 reviews | |||
| PriceFrom $585 | Free Cancellation | Rating 6.6 6,861 reviews | |||
| PriceFrom $595 | Free Cancellation | Rating 7.4 643 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington to United Kingdom?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to United Kingdom. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Washington to United Kingdom with flexible booking policies on momondo?
Yes. All flights to United Kingdom from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Washington to United Kingdom?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to United Kingdom.
I’m not ready to book a flight from Washington to United Kingdom right now. Can momondo alert me if prices change?
If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Washington and alert you when they change.
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