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Cheap flights from the United States to London from $234

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 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
3:35 pm - 11:20 amBOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
6:30 am - 6:07 pmSEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$643Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
10:40 am - 11:20 amBOS  Boston Logan Intl-SEN London Southend
19h 40m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
6:30 am - 9:50 amSEN  London Southend-BOS Boston Logan Intl
32h 20m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$652Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
3:35 pm - 11:20 amBOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
6:30 am - 6:07 pmSEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$654Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
3:35 pm - 11:20 amBOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
6:30 am - 7:55 pmSEN  London Southend-BOS Boston Logan Intl
18h 25m2 stops Barcelona-El Prat Zurich
$684Multiple Airlines
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
7:40 pm - 10:05 pmBWI  Baltimore/Washington-SEN London Southend
21h 25m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
7:15 am - 6:40 pmSEN  London Southend-BWI Baltimore/Washington
16h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
$686Multiple Airlines
Sat, Nov 7 - Sat, Nov 14
Multiple Airlines Logo
3:35 pm - 11:20 amBOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
6:30 am - 6:07 pmSEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$689Multiple Airlines
Mon, Sep 14 - Tue, Sep 22
Multiple Airlines Logo
5:10 pm - 9:45 pmBOS  Boston Logan Intl-SEN London Southend
23h 35m2 stops Vienna Intl Barcelona-El Prat
Multiple Airlines Logo
6:30 am - 6:07 pmSEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
$714Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
7:40 pm - 2:50 pmBWI  Baltimore/Washington-SEN London Southend
14h 10m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
3:35 pm - 6:40 pmSEN  London Southend-BWI Baltimore/Washington
32h 05m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
$731Multiple Airlines
Sun, Nov 8 - Sun, Nov 15
Multiple Airlines Logo
8:40 pm - 7:35 pmBWI  Baltimore/Washington-SEN London Southend
18h 55m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
7:15 am - 6:40 pmSEN  London Southend-BWI Baltimore/Washington
16h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
$741Multiple Airlines
Sat, Oct 31 - Sat, Nov 14
Multiple Airlines Logo
6:55 pm - 11:20 pmJFK  New York John F Kennedy Intl-SEN London Southend
23h 25m2 stops Kastrup Copenhagen Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
8:25 pm - 5:00 pmSEN  London Southend-JFK New York John F Kennedy Intl
25h 35m2 stops Palma de Mallorca Son Sant Joan Kastrup Copenhagen
$743Multiple Airlines
Sat, Sep 12 - Tue, Sep 22

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momondo Fare Finder

 
Customize your flight search to find flights from United States to London Southend Airport 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 August 12, 2026.
Use the filters below to find and compare flights from the United States to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 9/21

3:35 pm-11:20 am

2 stops14h 45m

London Southend

Tue 9/29

6:30 am-6:07 pm

2 stops16h 37m

$643

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 9/21

10:40 am-11:20 am

2 stops19h 40m

London Southend

Tue 9/29

6:30 am-9:50 am

2 stops32h 20m

$652

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 9/21

3:35 pm-11:20 am

2 stops14h 45m

London Southend

Tue 9/29

6:30 am-6:07 pm

2 stops16h 37m

$654

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 10/5

3:35 pm-11:20 am

2 stops14h 45m

London Southend

Tue 10/13

6:30 am-7:55 pm

2 stops18h 25m

$684

BaltimoreLondon

BWI Baltimore/Washington - SEN London Southend

BWISEN

Baltimore/Washington

Sat 11/7

7:40 pm-10:05 pm

2 stops21h 25m

London Southend

Sat 11/14

7:15 am-6:40 pm

2 stops16h 25m

$686

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 9/14

3:35 pm-11:20 am

2 stops14h 45m

London Southend

Tue 9/22

6:30 am-6:07 pm

2 stops16h 37m

$689

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Fri 9/18

5:10 pm-9:45 pm

2 stops23h 35m

London Southend

Tue 9/22

6:30 am-6:07 pm

2 stops16h 37m

$714

BaltimoreLondon

BWI Baltimore/Washington - SEN London Southend

BWISEN

Baltimore/Washington

Sun 11/8

7:40 pm-2:50 pm

2 stops14h 10m

London Southend

Sun 11/15

3:35 pm-6:40 pm

2 stops32h 05m

$731

BaltimoreLondon

BWI Baltimore/Washington - SEN London Southend

BWISEN

Baltimore/Washington

Sat 10/31

8:40 pm-7:35 pm

2 stops18h 55m

London Southend

Sat 11/14

7:15 am-6:40 pm

2 stops16h 25m

$741

New YorkLondon

JFK New York John F Kennedy Intl - SEN London Southend

JFKSEN

New York John F Kennedy Intl

Sat 9/12

6:55 pm-11:20 pm

2 stops23h 25m

London Southend

Tue 9/22

8:25 pm-5:00 pm

2 stops25h 35m

$743

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 London Southend Airport

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

How long does it take to fly to London Southend Airport?

Flight times from United States to London Southend Airport vary, but if you’re flying out of Boston and flying into London Heathrow Airport (one of the most popular routes), then the duration is 6h 30m on average. Another popular route from United States to London Southend Airport is flying from New York to London Heathrow Airport, which will take roughly 6h 55m. Keep in mind that layovers or delays could extend your travel time.

Cheap United States to London Southend Airport flight deals and tips

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

Fastest flight time

10h 30m

Direct flights

None
The fastest flight from United States to London Southend Airport takes 10h 30m
There are no direct flights from United States to London Southend Airport. There are no popular flight routes from United States to London Southend Airport.
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Frequently asked questions about flying from the United States to London Southend Airport

  • When did momondo last update prices for flights from United States to London Southend Airport?

    Prices for flights from United States to London Southend Airport are refreshed on a daily basis.

  • How old do you have to be to fly from United States to London Southend 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 United States to London Southend Airport.

  • What documentation or ID do you need to fly to London Southend Airport?

    The travel and health documents you'll need for your trip to London Southend 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 London Southend Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Wembley
Croydon
Dover
Stansted
Richmond
Kingston upon Thames
Harrow
Watford
Cobham
Slough
Uxbridge
Worthing
Romford
Ilford
Bedford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to London. momondo saves you time and could save you money on your trip.

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

Flights from United States to London 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 London?

momondo provides multiple filters to help you find the best flight to London 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 London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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