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Cheap flights from the United States to London from $320

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to London departing on 5/1. 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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0 bags

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Find the cheapest flights from the United States to London

Recent round-trip flight deals from the United States to London

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:59 am - 4:50 pm
JFK
-
SOU
28h 51m
2 stops
Multiple Airlines Logo
8:00 pm - 9:47 pm
SOU
-
JFK
30h 47m
2 stops
$750Multiple Airlines
Sun, May 10 - Sun, May 17
Multiple Airlines Logo
11:15 pm - 3:00 pm
BOS
-
SOU
34h 45m
2 stops
Multiple Airlines Logo
7:20 pm - 9:05 pm
SOU
-
BOS
30h 45m
1 stop
$779Multiple Airlines
Mon, May 11 - Mon, May 18
Aer Lingus Logo
4:55 pm - 8:35 am
JFK
-
SOU
10h 40m
1 stop
Aer Lingus Logo
9:20 am - 7:20 pm
SOU
-
JFK
15h 00m
1 stop
$828Aer Lingus
Sat, May 9 - Sat, May 16
Aer Lingus Logo
4:55 pm - 4:50 pm
JFK
-
SOU
18h 55m
1 stop
Aer Lingus Logo
9:20 am - 10:25 pm
SOU
-
JFK
18h 05m
1 stop
$833Aer Lingus
Sat, May 9 - Sat, May 16
Delta Logo
1:45 pm - 4:50 pm
SFO
-
SOU
19h 05m
1 stop
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$948Delta
Tue, Sep 15 - Tue, Sep 29
Delta Logo
1:45 pm - 8:35 am
SFO
-
SOU
34h 50m
1 stop
Delta Logo
9:05 am - 11:45 am
SOU
-
SFO
34h 40m
1 stop
$949Delta
Sun, Sep 13 - Tue, Sep 29
Virgin Atlantic Logo
4:55 pm - 4:50 pm
MIA
-
SOU
18h 55m
1 stop
Virgin Atlantic Logo
5:20 pm - 2:45 pm
SOU
-
MIA
26h 25m
1 stop
$1,015Virgin Atlantic
Sun, May 10 - Mon, May 18
KLM Logo
6:10 pm - 8:45 am
IAD
-
SOU
9h 35m
1 stop
KLM Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,082KLM
Mon, Aug 24 - Mon, Sep 7
KLM Logo
12:00 pm - 8:45 am
IAD
-
SOU
15h 45m
2 stops
KLM Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,087KLM
Mon, Aug 24 - Mon, Sep 7
Virgin Atlantic Logo
6:10 pm - 8:35 am
IAD
-
SOU
9h 25m
1 stop
Virgin Atlantic Logo
9:05 am - 3:35 pm
SOU
-
IAD
11h 30m
1 stop
$1,117Virgin Atlantic
Wed, May 6 - Tue, May 12

Delta flights from United States to Southampton

Our best Delta deals on United States to Southampton flight tickets
Delta
Sep 15
SFO1:45 pmSan Francisco
19h 05m
1 stop
SOU4:50 pmSouthampton Eastleigh
Sep 29
SOU5:20 pmSouthampton Eastleigh
26h 25m
1 stop
SFO11:45 amSan Francisco
$948
Delta
Sep 13
SFO1:45 pmSan Francisco
34h 50m
1 stop
SOU8:35 amSouthampton Eastleigh
Sep 29
SOU9:05 amSouthampton Eastleigh
34h 40m
1 stop
SFO11:45 amSan Francisco
$949
Delta
Sep 13
SFO10:45 pmSan Francisco
25h 50m
2 stops
SOU8:35 amSouthampton Eastleigh
Sep 28
SOU5:20 pmSouthampton Eastleigh
26h 25m
1 stop
SFO11:45 amSan Francisco
$951

Aer Lingus flights from United States to Southampton

Our best Aer Lingus deals on United States to Southampton flight tickets
Aer Lingus
May 9
JFK4:55 pmNew York John F Kennedy Intl
10h 40m
1 stop
SOU8:35 amSouthampton Eastleigh
May 16
SOU9:20 amSouthampton Eastleigh
15h 00m
1 stop
JFK7:20 pmNew York John F Kennedy Intl
$828
Aer Lingus
May 9
JFK4:55 pmNew York John F Kennedy Intl
18h 55m
1 stop
SOU4:50 pmSouthampton Eastleigh
May 16
SOU9:20 amSouthampton Eastleigh
18h 05m
1 stop
JFK10:25 pmNew York John F Kennedy Intl
$833
Aer Lingus
May 10
JFK4:55 pmNew York John F Kennedy Intl
18h 55m
1 stop
SOU4:50 pmSouthampton Eastleigh
May 17
SOU9:20 amSouthampton Eastleigh
18h 05m
1 stop
JFK10:25 pmNew York John F Kennedy Intl
$850

momondo Fare Finder

 
Customize your flight search to find flights from United States to Southampton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 28, 2026.
Use the filters below to find and compare flights from the United States to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Sun 5/10

6:59 am-4:50 pm

2 stops28h 51m

Southampton Eastleigh

Sun 5/17

8:00 pm-9:47 pm

2 stops30h 47m

$750

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mon 5/11

11:15 pm-3:00 pm

2 stops34h 45m

Southampton Eastleigh

Mon 5/18

7:20 pm-9:05 pm

1 stop30h 45m

$779

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Sat 5/9

4:55 pm-8:35 am

1 stop10h 40m

Southampton Eastleigh

Sat 5/16

9:20 am-7:20 pm

1 stop15h 00m

$828

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Sat 5/9

4:55 pm-4:50 pm

1 stop18h 55m

Southampton Eastleigh

Sat 5/16

9:20 am-10:25 pm

1 stop18h 05m

$833

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 9/15

1:45 pm-4:50 pm

1 stop19h 05m

Southampton Eastleigh

Tue 9/29

5:20 pm-11:45 am

1 stop26h 25m

$948

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 9/13

1:45 pm-8:35 am

1 stop34h 50m

Southampton Eastleigh

Tue 9/29

9:05 am-11:45 am

1 stop34h 40m

$949

MiamiSouthampton

MIA - SOU

MIASOU

Miami

Sun 5/10

4:55 pm-4:50 pm

1 stop18h 55m

Southampton Eastleigh

Mon 5/18

5:20 pm-2:45 pm

1 stop26h 25m

$1,015

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 8/24

6:10 pm-8:45 am

1 stop9h 35m

Southampton Eastleigh

Mon 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,082

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 8/24

12:00 pm-8:45 am

2 stops15h 45m

Southampton Eastleigh

Mon 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,087
Quickest round-trip

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 5/6

6:10 pm-8:35 am

1 stop9h 25m

Southampton Eastleigh

Tue 5/12

9:05 am-3:35 pm

1 stop11h 30m

$1,117

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from United States 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

Can stopping save me money on United States to Southampton flights?

You could potentially save up to 15% on your flight if you consider stops on a United States to Southampton flight.

Cheap United States to Southampton flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Southampton

Fastest flight time

9h 25m

Direct flights

None
The fastest flight from United States to Southampton takes 9h 25m
There are no direct flights from United States to Southampton. There are no popular flight routes from United States to Southampton.
Search flight deals

  • When did momondo last update prices for flights from United States to Southampton Eastleigh Airport?

    Prices for flights from United States to Southampton Eastleigh Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United States to Southampton Eastleigh Airport?

  • How old do you have to be to fly from United States to Southampton Eastleigh Airport?

    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 United States to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The necessary travel and health documents for your Southampton Eastleigh Airport 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.

Best airlines flying from United States to Southampton

Compare and see reviews for airlines that fly from United States to Southampton with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $515Free CancellationRating
7.9
8,357 reviews
Search Delta flights
Aer LingusPriceFrom $618Free CancellationRating
7.2
1,491 reviews
Search Aer Lingus flights
KLMPriceFrom $814Free CancellationRating
7.8
1,477 reviews
Search KLM flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from United States to Southampton?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Southampton. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United States to Southampton with flexible booking policies on momondo?

Flights from United States to Southampton with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Southampton?

momondo provides multiple filters to help you find the best flight to Southampton from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from United States to Southampton right now. Can momondo alert me if prices change?

Price alerts on flights to Southampton from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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