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$474+ Cheap flights from Denver (DEN) to Southampton (SOU)

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Denver to Southampton

Cheapest flights from Denver to Southampton
Explore the most affordable flight options available from Denver to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:00 am
DEN
-
SOU
2 stops19h 20m
Delta
Thu 3/58:50 am
SOU
-
DEN
2 stops19h 24m
Delta
Deal found 1/28$819
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:41 am
DEN
-
SOU
2 stops23h 54m
Aer Lingus
Sat 8/229:10 am
SOU
-
DEN
1 stop16h 05m
Aer Lingus
Deal found 1/28$985
This KAYAK deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:00 pm
DEN
-
SOU
1 stop29h 40m
Aer Lingus
Fri 7/179:10 am
SOU
-
DEN
1 stop16h 05m
Aer Lingus
Deal found 1/27$1,291
This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1312:34 pm
DEN
-
SOU
2 stops38h 11m
Multiple Airlines
Fri 3/209:30 am
SOU
-
DEN
2 stops31h 21m
Multiple Airlines
Deal found 1/27$1,387
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:22 pm
DEN
-
SOU
2 stops22h 08m
Aer Lingus
Tue 7/148:00 pm
SOU
-
DEN
2 stops35h 07m
Aer Lingus
Deal found 1/28$1,511
This Ovago deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:00 am
DEN
-
SOU
2 stops26h 35m
Aer Lingus
Sat 3/219:30 am
SOU
-
DEN
2 stops19h 07m
Aer Lingus
Deal found 1/28$1,596

Find flight deals from Denver to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 January 29, 2026.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
2 stars

Round-trip from

$819
(Delta)

One-way from

$474
(Delta)

Popular in

June

Cheapest in

October

Average price

$670
Provider with most accurate pricing for Denver Intl-Southampton Eastleigh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Southampton Eastleigh flights.
Search Deals
From Denver Intl to Southampton Eastleigh
Search Deals
One-way flight from Denver Intl to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Denver to Southampton that are best for you.

Fly from

Denver

Fly to

Southampton

Route

Depart

Return

Price

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Thu 2/26

6:00 am-8:20 am

2 stops19h 20m

Southampton Eastleigh

Thu 3/5

8:50 am-9:14 pm

2 stops19h 24m

$819

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Fri 3/13

12:34 pm-8:45 am

2 stops38h 11m

Southampton Eastleigh

Fri 3/20

9:30 am-10:51 am

2 stops31h 21m

$1,387

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Thu 7/2

2:22 pm-7:30 pm

2 stops22h 08m

Southampton Eastleigh

Tue 7/14

8:00 pm-12:07 am

2 stops35h 07m

$1,511

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sat 3/14

7:00 am-3:35 pm

2 stops26h 35m

Southampton Eastleigh

Sat 3/21

9:30 am-10:37 pm

2 stops19h 07m

$1,596

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sun 7/26

6:40 pm-7:25 pm

2 stops17h 45m

Southampton Eastleigh

Mon 8/3

9:10 am-6:15 pm

1 stop16h 05m

$4,186

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Wed 6/17

6:40 pm-7:25 pm

2 stops17h 45m

Southampton Eastleigh

Mon 6/22

9:10 am-6:15 pm

1 stop16h 05m

$4,189

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sun 7/5

6:40 pm-7:25 pm

2 stops17h 45m

Southampton Eastleigh

Fri 7/17

9:10 am-6:15 pm

1 stop16h 05m

$4,189

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sat 7/25

6:40 pm-8:45 pm

2 stops19h 05m

Southampton Eastleigh

Mon 8/3

9:10 am-6:15 pm

1 stop16h 05m

$4,202

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Wed 3/25

6:40 am-5:25 pm

2 stops28h 45m

$474

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sun 3/1

6:00 am-8:20 am

2 stops19h 20m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 20 results
1
2
  • Most accurate provider: When it comes to deals on Denver-Southampton flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Denver-Southampton flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Denver-Southampton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Southampton flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Southampton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Denver 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.

Cheapflights Insights

Everything you need to know about your flight from Denver to Southampton

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

Currently, August is the cheapest month in which you can book a flight from Denver to Southampton (average of $157). Flying from Denver to Southampton in June is currently the most expensive (average of $814). 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.

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 January 29, 2026.
See what other customers who have flown with Aer Lingus from Denver to Southampton have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,443 reviews

Overall

7.2

Food

6.6

Boarding

7.4

Comfort

7.1

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,443 reviews
Aer Lingus
7.2
Good
1,443 reviews

Overall

7.2

Food

6.6

Boarding

7.4

Comfort

7.1

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Related info for your journey

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

  • How long is the flight from Denver to Southampton?

    A quick flight from Denver to Southampton can take about 19h 20m. Delta provides one of the quickest options available for as low as $819. The distance between Denver and Southampton is about 4645 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Denver to Southampton round-trip?

    Our cheapest airline available from Denver to Southampton is Aer Lingus. Our recent data shows that you can find tickets from as low as $823 on this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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.

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

    Currently, August is the cheapest month in which you can book a flight from Denver to Southampton (average of $157). Flying from Denver to Southampton in June is currently the most expensive (average of $814). 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.

See more FAQs

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Alternative routes for Denver to Southampton

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Top airline flying from Denver to Southampton

Discover the top airline that operate flights from Denver 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 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$823Average$1,067FlexibilityNo cancel feeOn-timeN/A

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