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Cheap flights from Southampton to London Heathrow Airport from £125

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 27/7. 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.
SOU — LHR
28 Apr — 5 May1
1 adult
Sun 28/4
Sun 5/5

When is the cheapest time to fly from Southampton to London Heathrow Airport (SOU - LHR)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to London Heathrow Airport as you normally would.

Cheap British Airways flights from Southampton to Heathrow

Explore cheap flight options specifically provided by British Airways for the route between Southampton and Heathrow. 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 935,178 searches. Data last updated 23 April 2024.
Find some of the cheapest British Airways flights travelling from Southampton to London. Make sure to check back often as deals are often changing.
Mon 13/516:30SOU - LHR
1 stop4h 25mBritish Airways
Tue 8/1015:20LHR - SOU
1 stop3h 50mBritish Airways
Deal found 22/4£414
Tue 7/516:30SOU - LHR
1 stop3h 50mBritish Airways
Tue 14/515:05LHR - SOU
1 stop4h 20mBritish Airways
Deal found 23/4£422
Mon 29/412:30SOU - LHR
1 stop4h 10mBritish Airways
Sat 4/508:10LHR - SOU
1 stop5h 15mBritish Airways
Deal found 23/4£560

Cheap KLM flights from Southampton to Heathrow

Explore cheap flight options specifically provided by KLM for the route between Southampton and Heathrow. 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 935,178 searches. Data last updated 23 April 2024.
Take a gander at the lowest prices we've found on KLM flights from Southampton to London. Deals are refreshing constantly so come back soon for more options.
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£225
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Mon 3/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£226
Mon 20/519:40SOU - LHR
1 stop12h 00mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£227
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£253
Tue 28/519:40SOU - LHR
1 stop12h 00mKLM
Thu 30/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£318
Tue 30/407:55SOU - LHR
1 stop11h 30mKLM
Tue 7/511:45LHR - SOU
1 stop7h 25mKLM
Deal found 23/4£319
Mon 29/419:40SOU - LHR
1 stop12h 00mKLM
Sat 4/508:40LHR - SOU
1 stop8h 10mKLM
Deal found 23/4£538

Cheap Southampton to Heathrow flights in April & May 2024

Find cheap flight options from Southampton to Heathrow specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 935,178 searches. Prices were last updated on 23 April 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back soon for alternative fares.
Tue 21/519:40SOU - LHR
1 stop12h 00mKLM
Tue 28/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£213
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Mon 3/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£226
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£253
Tue 28/519:40SOU - LHR
1 stop12h 00mKLM
Thu 30/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£318
Tue 30/407:55SOU - LHR
1 stop11h 30mKLM
Tue 7/511:45LHR - SOU
1 stop7h 25mKLM
Deal found 23/4£319
Tue 28/509:40SOU - LHR
1 stop6h 15mAer Lingus
Tue 28/518:10LHR - SOU
1 stop15h 00mAer Lingus
Deal found 23/4£333
Tue 28/507:55SOU - LHR
2 stops11h 00mMultiple Airlines
Tue 28/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 23/4£347
Tue 28/517:20SOU - LHR
2 stops28h 15mMultiple Airlines
Thu 30/516:50LHR - SOU
2 stops26h 20mMultiple Airlines
Deal found 23/4£401
Tue 28/512:35SOU - LHR
2 stops9h 00mMultiple Airlines
Thu 30/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 23/4£422

Southampton to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Southampton and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 935,178 searches. Data last updated 23 April 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back soon for alternative fares.
Tue 21/519:40SOU - LHR
1 stop12h 00mKLM
Tue 28/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£213
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Mon 3/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£226
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£253
Tue 28/519:40SOU - LHR
1 stop12h 00mKLM
Thu 30/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£318
Tue 30/407:55SOU - LHR
1 stop11h 30mKLM
Tue 7/511:45LHR - SOU
1 stop7h 25mKLM
Deal found 23/4£319
Tue 28/509:40SOU - LHR
1 stop6h 15mAer Lingus
Tue 28/518:10LHR - SOU
1 stop15h 00mAer Lingus
Deal found 23/4£333
Tue 28/507:55SOU - LHR
2 stops11h 00mMultiple Airlines
Tue 28/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 23/4£347
Tue 28/517:20SOU - LHR
2 stops28h 15mMultiple Airlines
Thu 30/516:50LHR - SOU
2 stops26h 20mMultiple Airlines
Deal found 23/4£401
Tue 28/512:35SOU - LHR
2 stops9h 00mMultiple Airlines
Thu 30/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 23/4£422

Southampton to Heathrow flights leaving soon

Find last-minute flight options from Southampton to Heathrow 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 935,178 searches. Data last updated 23 April 2024.
Book one of these great deals on flights from Southampton to London. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 30/407:55SOU - LHR
1 stop11h 30mKLM
Tue 7/511:45LHR - SOU
1 stop7h 25mKLM
Deal found 23/4£319
Mon 29/419:40SOU - LHR
1 stop12h 00mKLM
Sat 4/508:40LHR - SOU
1 stop8h 10mKLM
Deal found 23/4£538
Mon 29/412:30SOU - LHR
1 stop4h 10mBritish Airways
Sat 4/508:10LHR - SOU
1 stop5h 15mBritish Airways
Deal found 23/4£560

One-way flights to Heathrow from Southampton

Search for one-way flight options from Southampton to Heathrow. 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 935,178 searches. Data last updated 23 April 2024.
Some of the best available deals we've found on one-way flights from Southampton to London. Users in need of a round-trip flight from Southampton to London instead should update the search form at the top of page.
Sat 27/719:50SOU - LHR
1 stop12h 20mMultiple Airlines
Deal found 21/4£125
Mon 13/520:00SOU - LHR
1 stop14h 20mAer Lingus
Deal found 22/4£138
Fri 21/619:40SOU - LHR
1 stop11h 45mBritish Airways
Deal found 22/4£185
Thu 1/809:15SOU - LHR
1 stop8h 25mAer Lingus
Deal found 21/4£208
Wed 22/516:00SOU - LHR
1 stop4h 50mBritish Airways
Deal found 21/4£214
Sat 27/716:15SOU - LHR
1 stop5h 20mAer Lingus
Deal found 21/4£215
Thu 1/809:25SOU - LHR
2 stops9h 25mMultiple Airlines
Deal found 21/4£226
Thu 1/815:40SOU - LHR
1 stop4h 05mBritish Airways
Deal found 21/4£234
Fri 21/610:20SOU - LHR
2 stops12h 20mBritish Airways
Deal found 22/4£247

Find flights from Southampton to Heathrow within your budget

Customise your flight search to find flights from Southampton to Heathrow 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 935,178 searches. Data last updated 23 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£225 - £414

Route

Depart

Return

Price

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

1 stop3h 35m

London Heathrow

Mon 27/5

1 stop10h 30m

£225

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 30/5

1 stop12h 00m

London Heathrow

Mon 3/6

1 stop10h 30m

£226

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

1 stop12h 00m

London Heathrow

Mon 27/5

1 stop10h 30m

£227

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

1 stop3h 35m

London Heathrow

Mon 27/5

1 stop10h 30m

£253

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

2 stops13h 40m

London Heathrow

Mon 27/5

1 stop12h 00m

£305

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

2 stops18h 15m

London Heathrow

Mon 27/5

1 stop12h 00m

£313

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 28/5

1 stop6h 15m

London Heathrow

Tue 28/5

1 stop15h 00m

£333

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 28/5

2 stops11h 00m

London Heathrow

Tue 28/5

1 stop12h 00m

£347

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 13/5

1 stop4h 25m

London Heathrow

Tue 8/10

1 stop3h 50m

£414

Flights are sorted by cheapest first

Deals found on 22/4

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 23 April 2024.
Get a feel of what it's like to fly with British Airways and KLM from Southampton to London by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
7.9
Good
1,632 reviews

Comfort

7.6

Boarding

7.8

Entertainment

7.3

Food

7.3

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.9
Good
1,632 reviews
7.9
Good
1,632 reviews

Comfort

7.6

Boarding

7.8

Entertainment

7.3

Food

7.3

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

7.2
Good
1,351 reviews
7.9
Good
1,632 reviews

Comfort

7.6

Boarding

7.8

Entertainment

7.3

Food

7.3

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

6.8
Okay
6,927 reviews
7.9
Good
1,632 reviews

Comfort

7.6

Boarding

7.8

Entertainment

7.3

Food

7.3

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Southampton to London Heathrow?

    Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to London Heathrow. You should not have trouble finding flights to London Heathrow from Eastleigh; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Southampton airport to London Heathrow. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

  • Can I find flights from Southampton to London Heathrow Airport for under £300 on Cheapflights?

    Yes, there are multiple flights from Southampton to London Heathrow Airport for under £300. The cheapest flight booked recently is on KLM for just £225, but on average you can expect to pay £371.

  • Are there last-minute flights available from Southampton to London Heathrow Airport for under £400?

    There are currently 3+ open flights from Southampton to London Heathrow Airport within the next 7 days for less than £400.

  • What does SOU to LHR mean?

    Great question - SOU to LHR just means Southampton Eastleigh Airport to London Heathrow Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your Southampton to Heathrow 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 Southampton to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Southampton to Heathrow 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 Southampton to Heathrow that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Southampton to Heathrow 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 Southampton to Heathrow that allow pets onboard?

    Many airlines flying from Southampton to Heathrow 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 Southampton to Heathrow?

    Yes, you can often find last-minute deals on Southampton to Heathrow 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 Southampton to London Heathrow Airport flight deals updated?

    The Southampton to London Heathrow Airport flight deals you see on this page were last updated on 23/4.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Search flights from Southampton to Heathrow by cabin class

Find flights from Southampton to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Southampton to Heathrow

Find hourly flight availability from Southampton to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 April 2024.
33%of flight departuresEarly morningMidnight to 6 am
31%of flight departuresMorning6 am to noon
36%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Fly with Cheapflights

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

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

Cheapflights makes it easy to find Southampton to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Southampton to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Southampton to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Southampton to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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