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Cheap flights from the United States to London from £173

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 19/10. 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 return flight deals from the United States to London

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:35 - 11:20BOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
06:30 - 18:07SEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
£476Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
10:40 - 11:20BOS  Boston Logan Intl-SEN London Southend
19h 40m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
06:30 - 09:50SEN  London Southend-BOS Boston Logan Intl
32h 20m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
£483Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
15:35 - 11:20BOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
06:30 - 18:07SEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
£484Multiple Airlines
Mon, 21 Sep - Tue, 29 Sep
Multiple Airlines Logo
15:35 - 11:20BOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
06:30 - 19:55SEN  London Southend-BOS Boston Logan Intl
18h 25m2 stops Barcelona-El Prat Zurich
£506Multiple Airlines
Mon, 5 Oct - Tue, 13 Oct
Multiple Airlines Logo
19:40 - 22:05BWI  Baltimore/Washington-SEN London Southend
21h 25m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
07:15 - 18:40SEN  London Southend-BWI Baltimore/Washington
16h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
£508Multiple Airlines
Sat, 7 Nov - Sat, 14 Nov
Multiple Airlines Logo
15:35 - 11:20BOS  Boston Logan Intl-SEN London Southend
14h 45m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
06:30 - 18:07SEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
£510Multiple Airlines
Mon, 14 Sep - Tue, 22 Sep
Multiple Airlines Logo
17:10 - 21:45BOS  Boston Logan Intl-SEN London Southend
23h 35m2 stops Vienna Intl Barcelona-El Prat
Multiple Airlines Logo
06:30 - 18:07SEN  London Southend-BOS Boston Logan Intl
16h 37m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl
£529Multiple Airlines
Fri, 18 Sep - Tue, 22 Sep
Multiple Airlines Logo
19:40 - 14:50BWI  Baltimore/Washington-SEN London Southend
14h 10m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
15:35 - 18:40SEN  London Southend-BWI Baltimore/Washington
32h 05m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
£541Multiple Airlines
Sun, 8 Nov - Sun, 15 Nov
Multiple Airlines Logo
20:40 - 19:35BWI  Baltimore/Washington-SEN London Southend
18h 55m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
07:15 - 18:40SEN  London Southend-BWI Baltimore/Washington
16h 25m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
£549Multiple Airlines
Sat, 31 Oct - Sat, 14 Nov
Multiple Airlines Logo
18:55 - 23:20JFK  New York John F Kennedy Intl-SEN London Southend
23h 25m2 stops Kastrup Copenhagen Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
20:25 - 17:00SEN  London Southend-JFK New York John F Kennedy Intl
25h 35m2 stops Palma de Mallorca Son Sant Joan Kastrup Copenhagen
£550Multiple Airlines
Sat, 12 Sep - Tue, 22 Sep

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momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 12 August 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 return flight
Fastest return journey

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 21/9

15:35-11:20

2 stops14h 45m

London Southend

Tue 29/9

06:30-18:07

2 stops16h 37m

£476

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 21/9

10:40-11:20

2 stops19h 40m

London Southend

Tue 29/9

06:30-09:50

2 stops32h 20m

£483

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 21/9

15:35-11:20

2 stops14h 45m

London Southend

Tue 29/9

06:30-18:07

2 stops16h 37m

£484

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 5/10

15:35-11:20

2 stops14h 45m

London Southend

Tue 13/10

06:30-19:55

2 stops18h 25m

£506

BaltimoreLondon

BWI Baltimore/Washington - SEN London Southend

BWISEN

Baltimore/Washington

Sat 7/11

19:40-22:05

2 stops21h 25m

London Southend

Sat 14/11

07:15-18:40

2 stops16h 25m

£508

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Mon 14/9

15:35-11:20

2 stops14h 45m

London Southend

Tue 22/9

06:30-18:07

2 stops16h 37m

£510

BostonLondon

BOS Boston Logan Intl - SEN London Southend

BOSSEN

Boston Logan Intl

Fri 18/9

17:10-21:45

2 stops23h 35m

London Southend

Tue 22/9

06:30-18:07

2 stops16h 37m

£529

BaltimoreLondon

BWI Baltimore/Washington - SEN London Southend

BWISEN

Baltimore/Washington

Sun 8/11

19:40-14:50

2 stops14h 10m

London Southend

Sun 15/11

15:35-18:40

2 stops32h 05m

£541

BaltimoreLondon

BWI Baltimore/Washington - SEN London Southend

BWISEN

Baltimore/Washington

Sat 31/10

20:40-19:35

2 stops18h 55m

London Southend

Sat 14/11

07:15-18:40

2 stops16h 25m

£549

New YorkLondon

JFK New York John F Kennedy Intl - SEN London Southend

JFKSEN

New York John F Kennedy Intl

Sat 12/9

18:55-23:20

2 stops23h 25m

London Southend

Tue 22/9

20:25-17:00

2 stops25h 35m

£550

Flights are sorted by cheapest return 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 50m. 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required for your trip to London Southend Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Southend Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Wembley
Gatwick
Milton Keynes
Luton
Southend-on-Sea
Slough
Ipswich
Maidstone
Folkestone
Ilford
Hastings
Canterbury
Chichester
Hayes
Guildford
Bedford
Harlow
Colchester
Chelmsford

Why use momondo?

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

Finding the right flight to London from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for United States to London flights to just show those with flexible booking policies.

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?

Price alerts on flights to London 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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