Cheap flights from the United States to London from $258
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 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from the United States to London
Recent round-trip flight deals from the United States to London
Recent one-way flight deals from the United States to London
Recent last minute flight deals from the United States to London
KLM flights from United States to Southampton
Our best KLM deals on United States to Southampton flight tickets
Aer Lingus flights from United States to Southampton
Our best Aer Lingus deals on United States to Southampton flight tickets
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
What is the cheapest day to depart on your flight to Southampton?
On average, the least expensive day to fly to Southampton from United States is on a Monday. momondo users have found tickets for Monday departures for as low as $772. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from United States to Southampton for around $1,107.
What is the cheapest time of day to depart on your flight to Southampton?
Flying to Southampton from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $806 when looking at flights departing in the morning. Flights to Southampton are more costly in the afternoon, with an average ticket price of $980. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest airline that flies from United States to Southampton Eastleigh?
Delta, Aer Lingus, and KLM are the most popular carriers operating from United States to Southampton Eastleigh
What airlines fly to Southampton?
British Airways, Delta and United Airlines are the top three most popular airlines that fly to Southampton from United States according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 25 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.
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
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?
As of May 2025, there are 5 operators available to choose from 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 | ||
|---|---|---|---|---|---|
| PriceFrom $652 | Free Cancellation | Rating 7.0 1,076 reviews | |||
| PriceFrom $738 | Free Cancellation | Rating 7.8 1,334 reviews | |||
| PriceFrom $770 | Free Cancellation | Rating 8.0 7,934 reviews | |||
| PriceFrom $817 | Free Cancellation | Rating 7.4 643 reviews | |||
| PriceFrom $944 | Free Cancellation | Rating 6.6 6,845 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 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.