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$533+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOU
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
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 February 5, 2026.

This KLM deal was found by Cheapflights users on 2/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:20 am
DEN
-
SOU
2 stops15h 00m
KLM
Tue 3/105:35 pm
SOU
-
DEN
2 stops29h 42m
KLM
Deal found 2/4$820
This Gurufare deal was found by Cheapflights users on 2/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:55 am
DEN
-
SOU
2 stops24h 40m
Scandinavian Airlines
Fri 5/229:05 am
SOU
-
DEN
2 stops21h 36m
Scandinavian Airlines
Deal found 2/4$934
This oojo deal was found by Cheapflights users on 2/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:31 pm
DEN
-
SOU
2 stops21h 04m
Aer Lingus
Sat 8/229:10 am
SOU
-
DEN
1 stop16h 05m
Aer Lingus
Deal found 2/4$954
This Expedia deal was found by Cheapflights users on 2/4. 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.
Sun 3/227:05 am
DEN
-
SOU
2 stops19h 40m
Multiple Airlines
Sun 3/298:00 pm
SOU
-
DEN
2 stops57h 59m
Multiple Airlines
Deal found 2/4$1,037
This Ovago deal was found by Cheapflights users on 2/4. 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.
Thu 5/78:40 am
DEN
-
SOU
2 stops24h 55m
Aer Lingus
Fri 5/228:00 pm
SOU
-
DEN
1 stop29h 15m
Aer Lingus
Deal found 2/4$1,054
This Ovago deal was found by Cheapflights users on 2/4. 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.
Tue 3/31:35 pm
DEN
-
SOU
2 stops15h 20m
Multiple Airlines
Tue 3/106:05 pm
SOU
-
DEN
3 stops31h 35m
Multiple Airlines
Deal found 2/4$1,086
This Delta deal was found by Cheapflights users on 2/2. 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.
Tue 6/21:15 pm
DEN
-
SOU
2 stops20h 35m
Delta
Fri 6/129:05 am
SOU
-
DEN
2 stops20h 53m
Delta
Deal found 2/2$1,108

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 February 5, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$820
(KLM)

One-way from

$533
(KAYAK)

Popular in

June

Cheapest in

October

Average price

$666
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 ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 5, 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

Tue 3/3

10:20 am-8:20 am

2 stops15h 00m

Southampton Eastleigh

Tue 3/10

5:35 pm-5:17 pm

2 stops29h 42m

$820

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sun 3/22

7:05 am-8:45 am

2 stops19h 40m

Southampton Eastleigh

Sun 3/29

8:00 pm-10:59 pm

2 stops57h 59m

$1,037

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Tue 3/3

3:40 pm-8:45 am

3 stops34h 05m

Southampton Eastleigh

Tue 3/10

9:20 am-10:23 am

3 stops31h 03m

$1,304

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Wed 3/4

5:25 pm-9:00 pm

2 stops20h 35m

Southampton Eastleigh

Sun 3/8

8:25 pm-4:30 pm

2 stops50h 05m

$4,575

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Fri 5/15

8:00 pm-8:35 am

1 stop29h 35m

$533

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Sun 5/31

8:00 pm-8:40 am

1 stop29h 40m

$866

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Compare providers for flights from Denver to Southampton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Southampton in February.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Southampton flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Denver-Southampton flight deals on Cheapflights vs. Ovago 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 Ovago the most. Ovago 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 February 5, 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
1,445 reviews

Crew

8.0

Food

6.6

Boarding

7.4

Overall

7.2

Entertainment

6.9

Comfort

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Aer Lingus
7.2
Good
1,445 reviews
Aer Lingus
7.2
Good
1,445 reviews

Crew

8.0

Food

6.6

Boarding

7.4

Overall

7.2

Entertainment

6.9

Comfort

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.

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 15h. KLM provides one of the quickest options available for as low as $820. The distance between Denver and Southampton is about 4645 mi.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$823Average$1,067FlexibilityNo cancel feeOn-timeN/A

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