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$457+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$855
(Delta)

One-way from

$457
(Ovago)

Popular in

June

Cheapest in

October

Average price

$665
From Denver Intl to Southampton Eastleigh
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One-way flight from Denver Intl to Southampton Eastleigh
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Highest demand for flights based on searches. 20% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 10/305:45 amDEN - SOU
2 stops20h 20mDelta
Thu 11/68:50 amSOU - DEN
2 stops19h 51mDelta
Deal found 9/15$855
This Gurufare deal was found by Cheapflights users on 9/13. 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.
Thu 10/97:55 pmDEN - SOU
1 stop29h 45mAer Lingus
Fri 10/179:40 amSOU - DEN
1 stop15h 19mAer Lingus
Deal found 9/13$946
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:40 pmDEN - SOU
2 stops20h 50mMultiple Airlines
Thu 11/68:10 pmSOU - DEN
3 stops28h 55mMultiple Airlines
Deal found 9/15$1,097
This Delta deal was found by Cheapflights users on 9/14. 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 10/96:05 amDEN - SOU
2 stops19h 40mDelta
Fri 10/179:20 amSOU - DEN
2 stops21h 30mDelta
Deal found 9/14$1,327
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 9/216:05 amDEN - SOU
2 stops19h 40mDelta
Mon 9/299:20 amSOU - DEN
2 stops21h 39mDelta
Deal found 9/14$1,344
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:55 pmDEN - SOU
1 stop29h 20mAer Lingus
Mon 9/298:00 pmSOU - DEN
2 stops33h 16mAer Lingus
Deal found 9/14$1,911

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 September 15, 2025.
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

Wed 10/22

11:05 am-8:45 am

2 stops14h 40m

Southampton Eastleigh

Thu 10/30

6:05 pm-6:56 pm

2 stops30h 51m

$855

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Thu 10/30

5:45 am-8:05 am

2 stops20h 20m

Southampton Eastleigh

Thu 11/6

8:50 am-9:41 pm

2 stops19h 51m

$855

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Tue 10/21

11:05 am-8:45 am

2 stops14h 40m

Southampton Eastleigh

Thu 10/30

6:05 pm-7:01 pm

2 stops30h 56m

$855

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Thu 10/9

7:55 pm-8:40 am

1 stop29h 45m

Southampton Eastleigh

Fri 10/17

9:40 am-5:59 pm

1 stop15h 19m

$946

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Tue 10/21

4:16 pm-5:00 pm

2 stops17h 44m

Southampton Eastleigh

Tue 10/28

8:40 am-9:41 pm

2 stops19h 01m

$950

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Wed 10/22

3:41 pm-5:00 pm

2 stops18h 19m

Southampton Eastleigh

Wed 10/29

8:40 am-9:41 pm

2 stops19h 01m

$950

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Tue 10/21

6:05 am-8:45 am

2 stops19h 40m

Southampton Eastleigh

Wed 10/29

8:40 am-9:41 pm

2 stops19h 01m

$950

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Wed 10/22

7:05 am-8:45 am

2 stops18h 40m

Southampton Eastleigh

Tue 10/28

8:40 am-9:41 pm

2 stops19h 01m

$950

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Mon 10/20

7:10 am-8:45 am

2 stops18h 35m

Southampton Eastleigh

Tue 10/28

8:40 am-9:41 pm

2 stops19h 01m

$950

DenverSouthampton

DEN - SOU

DENSOU

Denver Intl

Thu 10/30

4:40 pm-8:25 am

3 stops33h 45m

Southampton Eastleigh

Thu 11/6

8:10 pm-6:05 pm

3 stops28h 55m

$1,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 16 results
1
2

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, November is the cheapest month in which you can book a flight from Denver to Southampton (average of $787). Flying from Denver to Southampton in June is currently the most expensive (average of $1,308). 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.

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

Find hourly flight availability from Denver to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Denver to Southampton at noon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the morning.

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 September 15, 2025.
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
1,270 reviews

Crew

8.0

Comfort

7.1

Overall

7.2

Entertainment

6.9

Boarding

7.3

Food

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.
Aer Lingus
7.2
Good
1,270 reviews
Aer Lingus
7.2
Good
1,270 reviews

Crew

8.0

Comfort

7.1

Overall

7.2

Entertainment

6.9

Boarding

7.3

Food

6.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - DUB

Most airlines board by group even though passengers are seated at the back. At Seatac, passengers were seated starting at the back. Otherwise, flight was good.

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 14h 40m. Delta provides one of the quickest options available for as low as $855. 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, November is the cheapest month in which you can book a flight from Denver to Southampton (average of $787). Flying from Denver to Southampton in June is currently the most expensive (average of $1,308). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$823Average$1,051FlexibilityNo cancel feeOn-timeN/A

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