Cheap flights from Washington, D.C. to London from $802
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, D.C. to London departing on 12/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Not ready to book? to track prices.Aer Lingus flights from Washington, D.C. to Southampton
Our best Aer Lingus deals on Washington, D.C. to Southampton flight tickets
British Airways flights from Washington, D.C. to Southampton
Our best British Airways deals on Washington, D.C. to Southampton flight tickets
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Use the filters below to find and compare flights from Washington, D.C. to Southampton that are best for you.
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Wed 11/25
8:50 pm-11:55 am
1 stop10h 05m
Southampton Eastleigh
Mon 11/30
7:25 pm-8:30 pm
2 stops54h 05m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Sun 11/15
7:40 pm-11:45 am
2 stops35h 05m
Southampton Eastleigh
Sun 11/22
12:25 pm-7:20 pm
1 stop11h 55m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Wed 11/25
8:50 pm-11:55 am
1 stop10h 05m
Southampton Eastleigh
Mon 11/30
5:55 pm-3:45 pm
2 stops26h 50m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Sun 11/15
7:40 pm-7:30 pm
3 stops18h 50m
Southampton Eastleigh
Sun 11/22
7:30 pm-6:30 pm
3 stops28h 00m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Sun 11/15
7:40 pm-5:15 pm
2 stops16h 35m
Southampton Eastleigh
Sun 11/22
7:30 pm-6:30 pm
3 stops28h 00m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Wed 11/25
9:55 am-4:20 pm
3 stops25h 25m
Southampton Eastleigh
Mon 11/30
7:25 pm-2:40 pm
2 stops24h 15m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Sat 12/12
8:50 pm-8:50 am
1 stop31h 00m
Southampton Eastleigh
Sun 12/20
2:00 pm-3:45 pm
2 stops30h 45m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Wed 11/25
8:50 pm-11:55 am
1 stop10h 05m
Southampton Eastleigh
Sun 11/29
2:00 pm-3:45 pm
2 stops30h 45m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Wed 11/25
8:50 pm-11:55 am
1 stop10h 05m
Southampton Eastleigh
Mon 11/30
8:00 pm-3:45 pm
1 stop24h 45m
Washington, D.C.Southampton
IAD Washington, D.C. Dulles Intl - SOU Southampton Eastleigh
IADSOU
Washington, D.C. Dulles Intl
Wed 11/25
8:50 pm-11:55 am
1 stop10h 05m
Southampton Eastleigh
Mon 11/30
8:00 pm-7:20 pm
1 stop28h 20m
See travel insights to London from
How to get the cheapest flight ticket from Washington, D.C. to Southampton
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
What is the cheapest airline that flies from Washington, D.C. to Southampton Eastleigh?
Aer Lingus is the most popular carrier operating from Washington, D.C. to Southampton Eastleigh
What airlines fly to Southampton?
British Airways, United Airlines and Icelandair are the top three most popular airlines that fly to Southampton from Washington, D.C. according to our data. British Airways is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 18 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.
When to book flights from Washington, D.C. to Southampton
Cheap Washington, D.C. to Southampton (WAS to SOU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Southampton
Frequently asked questions about flying from Washington, D.C. to Southampton
How far is Washington, D.C. to Southampton Eastleigh by plane?
Washington, D.C. and Southampton Eastleigh are 3622.6 mi apart from one another. A reasonable flight in good conditions will take 10h 05m.
When did momondo last update prices for flights from Washington, D.C. to Southampton Eastleigh Airport?
Prices for flights from Washington, D.C. to Southampton Eastleigh Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Southampton Eastleigh Airport?
The number of operators available for flights from Washington, D.C. to Southampton Eastleigh Airport is 1 as of October 2026.
How old do you have to be to fly from Washington, D.C. to Southampton Eastleigh Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Southampton Eastleigh Airport.
What documentation or ID do you need to fly to Southampton Eastleigh Airport?
The travel and health documents you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Washington, D.C. to Southampton
Compare and see reviews for airlines that fly from Washington, D.C. to Southampton with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,064 | Free Cancellation | Rating 7.3 1,812 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Southampton?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Southampton. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Southampton with flexible booking policies on momondo?
All flight searches from Washington, D.C. to Southampton on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Southampton?
Once all potential Washington, D.C. to Southampton flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Washington, D.C. to Southampton right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Washington, D.C. to Southampton flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.