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Cheap flights from Seattle (SEA) to Southampton (SOU) from $725

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — SOU
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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Cheap flight deals from Seattle to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2024.

Round-trip from

$643
From Seattle/Tacoma Intl to Southampton Eastleigh
Search Deals

What is the cheapest day to fly round-trip from Seattle to Southampton?

It’s generally more expensive to depart on a Sunday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Seattle to Southampton?

Travelers have found it’s best to book a flight 8 days in advance to save up to 51% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 8 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Southampton 1-2 weeks in advance for as low as $666, or $1,099 for flights within the next 24 hours.

What is the cheapest month to fly from Seattle to Southampton?

November is one of the best times of the year to fly to Southampton from Seattle. Prices for November average $859 per person but you can even find prices for as low as $560. The most expensive prices can be found in the month of June. Opting for a November flight can save you 40% on your journey compared to booking in June

What is the cheapest time of day to fly from SEA to SOU?

When flying from Seattle to Southampton, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 15% versus a flight at noon.

Cheap British Airways flights from Seattle to Southampton

Explore cheap flight options specifically provided by British Airways for the route between Seattle and Southampton. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Peruse some of the lowest-priced British Airways flights we've found from Seattle to Southampton. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/177:55 pmSOU - SEA
2 stops23h 40mBritish Airways
Deal found 5/30$1,145
Tue 7/96:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Sat 8/109:40 amSOU - SEA
1 stop15h 21mBritish Airways
Deal found 5/29$1,150
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Wed 6/198:30 amSOU - SEA
2 stops17h 15mBritish Airways
Deal found 5/30$1,195
Tue 7/97:40 pmSEA - SOU
2 stops15h 45mBritish Airways
Sat 8/109:40 amSOU - SEA
1 stop15h 21mBritish Airways
Deal found 5/29$1,204
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/179:40 amSOU - SEA
1 stop15h 21mBritish Airways
Deal found 5/30$1,213
Thu 7/256:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Mon 7/297:55 pmSOU - SEA
2 stops23h 40mBritish Airways
Deal found 5/29$1,244
Tue 7/96:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Sun 7/149:40 amSOU - SEA
2 stops42h 08mBritish Airways
Deal found 5/29$1,262
Thu 7/257:40 pmSEA - SOU
2 stops15h 45mBritish Airways
Mon 7/297:55 pmSOU - SEA
2 stops23h 40mBritish Airways
Deal found 5/29$1,298
Tue 6/47:40 pmSEA - SOU
2 stops15h 30mBritish Airways
Wed 6/198:00 pmSOU - SEA
1 stop29h 01mBritish Airways
Deal found 5/30$1,528

Cheap KLM flights from Seattle to Southampton

Explore cheap flight options specifically provided by KLM for the route between Seattle and Southampton. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a gander at the lowest prices we've found on KLM flights from Seattle to Southampton. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 6/196:05 pmSEA - SOU
1 stop17h 05mKLM
Sun 6/235:20 pmSOU - SEA
1 stop25h 00mKLM
Deal found 5/29$1,609
Wed 6/195:10 pmSEA - SOU
2 stops15h 40mKLM
Sun 6/239:25 amSOU - SEA
2 stops19h 15mKLM
Deal found 5/29$2,327

Cheap Seattle to Southampton flights in May & June 2024

Find cheap flight options from Seattle to Southampton specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
The lowest fares we've come across on flights traveling from Seattle to Southampton in May and June 2024. For more flight deals, be sure to check back very soon.
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/177:55 pmSOU - SEA
2 stops23h 40mBritish Airways
Deal found 5/30$1,145
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Wed 6/198:30 amSOU - SEA
2 stops17h 15mBritish Airways
Deal found 5/30$1,195
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/179:40 amSOU - SEA
1 stop15h 21mBritish Airways
Deal found 5/30$1,213
Tue 6/117:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Sun 6/168:00 pmSOU - SEA
1 stop29h 01mBritish Airways
Deal found 5/30$1,225
Wed 6/1911:00 pmSEA - SOU
2 stops36h 10mDelta
Sun 6/237:40 pmSOU - SEA
2 stops47h 05mDelta
Deal found 5/30$1,313
Wed 6/1911:00 pmSEA - SOU
2 stops24h 25mDelta
Sun 6/237:40 pmSOU - SEA
1 stop22h 40mDelta
Deal found 5/29$1,314
Mon 6/177:00 amSEA - SOU
2 stops28h 30mMultiple Airlines
Sun 6/303:40 pmSOU - SEA
3 stops33h 42mMultiple Airlines
Deal found 5/30$1,348
Tue 6/116:05 pmSEA - SOU
1 stop17h 05mKLM
Sun 6/165:20 pmSOU - SEA
1 stop25h 00mKLM
Deal found 5/30$1,385
Mon 6/175:55 amSEA - SOU
3 stops29h 35mMultiple Airlines
Sun 6/303:40 pmSOU - SEA
3 stops33h 42mMultiple Airlines
Deal found 5/30$1,424

Seattle to Southampton 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Southampton in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
The lowest fares we've come across on flights traveling from Seattle to Southampton in May and June 2024. For more flight deals, be sure to check back very soon.
Tue 10/16:05 pmSEA - SOU
1 stop14h 45mKLM
Wed 10/165:20 pmSOU - SEA
1 stop25h 15mKLM
Deal found 5/30$728
Tue 10/16:00 amSEA - SOU
2 stops17h 25mDelta
Wed 10/167:40 pmSOU - SEA
1 stop22h 55mDelta
Deal found 5/30$735
Tue 10/111:45 amSEA - SOU
2 stops21h 05mDelta
Wed 10/167:55 amSOU - SEA
2 stops24h 04mDelta
Deal found 5/30$745
Wed 7/176:55 pmSEA - SOU
2 stops16h 35mMultiple Airlines
Wed 7/249:45 amSOU - SEA
2 stops18h 50mMultiple Airlines
Deal found 5/30$866
Fri 11/19:05 pmSEA - SOU
1 stop28h 40mAer Lingus
Fri 11/159:15 amSOU - SEA
1 stop17h 00mAer Lingus
Deal found 5/30$907
Fri 11/17:20 amSEA - SOU
2 stops18h 30mDelta
Fri 11/159:30 amSOU - SEA
2 stops20h 50mDelta
Deal found 5/30$932
Fri 11/19:05 pmSEA - SOU
1 stop28h 40mBritish Airways
Fri 11/158:40 amSOU - SEA
2 stops16h 05mBritish Airways
Deal found 5/30$942
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/177:55 pmSOU - SEA
2 stops23h 40mBritish Airways
Deal found 5/30$1,145
Tue 7/96:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Sat 8/109:40 amSOU - SEA
1 stop15h 21mBritish Airways
Deal found 5/29$1,150

Seattle to Southampton flights leaving soon

Find last-minute flight options from Seattle to Southampton for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Check out these flights departing soon from Seattle to Southampton. It's wise to confirm all flight details are correct before booking.
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/177:55 pmSOU - SEA
2 stops23h 40mBritish Airways
Deal found 5/30$1,145
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Wed 6/198:30 amSOU - SEA
2 stops17h 15mBritish Airways
Deal found 5/30$1,195
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Mon 6/179:40 amSOU - SEA
1 stop15h 21mBritish Airways
Deal found 5/30$1,213
Tue 6/47:40 pmSEA - SOU
2 stops15h 30mBritish Airways
Wed 6/198:00 pmSOU - SEA
1 stop29h 01mBritish Airways
Deal found 5/30$1,528

One-way flights to Southampton from Seattle

Search for one-way flight options from Seattle to Southampton. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a look at some of the best available options we've come across on one-way flights from Seattle to Southampton. Users can also find round-trip Seattle to Southampton flights by using the search form above.
Mon 7/16:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Deal found 5/28$725
Mon 7/11:30 pmSEA - SOU
2 stops18h 30mBritish Airways
Deal found 5/28$728
Tue 6/47:40 pmSEA - SOU
2 stops28h 30mBritish Airways
Deal found 5/30$737
Sun 6/301:40 pmSEA - SOU
2 stops21h 45mBritish Airways
Deal found 5/28$1,108
Sat 6/291:50 pmSEA - SOU
2 stops21h 35mBritish Airways
Deal found 5/28$1,158
Fri 6/281:25 pmSEA - SOU
2 stops18h 20mBritish Airways
Deal found 5/28$1,370
Thu 6/67:40 pmSEA - SOU
2 stops30h 35mBritish Airways
Deal found 5/30$1,545
Sun 6/306:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Deal found 5/28$1,616
Sat 6/296:45 pmSEA - SOU
1 stop16h 45mBritish Airways
Deal found 5/28$1,666

Find flights from Seattle to Southampton within your budget

Customize your flight search to find flights from Seattle 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, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,150 - $2,327

Route

Depart

Return

Price

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 7/9

1 stop16h 45m

Southampton Eastleigh

Sat 8/10

1 stop15h 21m

$1,150

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 7/9

2 stops15h 45m

Southampton Eastleigh

Sat 8/10

1 stop15h 21m

$1,204

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Thu 7/25

1 stop16h 45m

Southampton Eastleigh

Mon 7/29

2 stops23h 40m

$1,244

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 7/9

1 stop16h 45m

Southampton Eastleigh

Sun 7/14

2 stops42h 08m

$1,262

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Thu 7/25

2 stops15h 45m

Southampton Eastleigh

Mon 7/29

2 stops23h 40m

$1,298

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Wed 6/19

2 stops24h 25m

Southampton Eastleigh

Sun 6/23

1 stop22h 40m

$1,314

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Wed 6/19

1 stop17h 05m

Southampton Eastleigh

Sun 6/23

1 stop25h 00m

$1,609

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Tue 7/9

1 stop16h 45m

Southampton Eastleigh

Sun 7/14

1 stop15h 21m

$1,775

Seattle/Tacoma IntlSouthampton Eastleigh

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Wed 6/19

2 stops15h 40m

Southampton Eastleigh

Sun 6/23

2 stops19h 15m

$2,327

Flights are sorted by cheapest first

Deals found on 5/29

What is the cheapest day to fly from Seattle to Southampton?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Southampton. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Southampton flight should consider departing on Monday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Southampton by month

Plan your trip to Southampton by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated May 30, 2024.
Read reviews from past customers who have flown British Airways and KLM from Seattle to Southampton. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,520 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

British Airways
6.8
Okay
6,765 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Seattle to Southampton for under $1,200 on Cheapflights?

    Yes, there are multiple flights from Seattle to Southampton for under $1,200. The cheapest flight booked recently is on British Airways for just $1,150, but on average you can expect to pay $2,051.

  • Are there last-minute flights available from Seattle to Southampton for under $1,200?

    There are currently 4+ open flights from Seattle to Southampton within the next 7 days for less than $1,200.

  • What are the cheapest airlines flying from Seattle to Southampton round-trip?

    British Airways, at $1,150, was found to be the cheapest airline from Seattle to Southampton.Alternate airlines to your destination round-trip include Delta and KLM.

  • What does SEA to SOU mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport flight would often be abbreviated as a SEA to SOU flight.

  • Can I find deals for flights from Seattle to Southampton that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Southampton flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Southampton with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Southampton flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Southampton that include hotel bookings?

    Yes. In addition to deals on Seattle to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Southampton.

  • Can I find deals for business class flights from Seattle to Southampton?

    Yes. Cheapflights offers flight deals from Seattle to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Southampton that allow pets onboard?

    Many airlines flying from Seattle to Southampton offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Southampton?

    Yes, you can often find last-minute deals on Seattle to Southampton flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Southampton flight deals updated?

    The Seattle to Southampton flight deals you see on this page were last updated on 5/30.

  • What is the cheapest month to book a flight from Seattle to Southampton?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Southampton (average of $724). Flying from Seattle to Southampton in June is currently the most expensive (average of $1,358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Seattle to Southampton
See prices for flight routes from nearby airports that may be better suited for you.

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Top 2 airlines flying from Seattle to Southampton

Discover the top 2 airlines that operate flights from Seattle to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$856Average$881FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest$993Average$1,080FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Seattle to Southampton by cabin class

Find flights from Seattle to Southampton, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
Prem Econ Class
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Southampton?

Cheapflights helps you search for flights from Seattle to Southampton via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Southampton?

Cheapflights helps you find that perfect flight to Southampton from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Southampton with no change fees?

Need flexible booking options for your flight to Southampton from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Southampton become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Southampton flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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