Cheap flights from Portsmouth to Bangkok from £597

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Bangkok

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Bangkok
Explore the most affordable flight options available from Portsmouth to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Wed 31/1208:40SOU - BKK
2 stops38h 25mMultiple Airlines
Tue 20/115:00BKK - SOU
2 stops47h 50mMultiple Airlines
Deal found 16/12£1,211
Wed 31/1208:40SOU - BKK
2 stops38h 25mMultiple Airlines
Wed 21/108:00BKK - SOU
2 stops30h 50mMultiple Airlines
Deal found 17/12£1,214
Tue 30/1220:10SOU - BKK
2 stops39h 15mQatar Airways
Wed 21/119:50BKK - SOU
2 stops30h 50mQatar Airways
Deal found 17/12£1,474
Tue 30/1220:10SOU - BKK
2 stops39h 15mQatar Airways
Thu 22/108:15BKK - SOU
2 stops38h 20mQatar Airways
Deal found 17/12£1,475
Tue 30/1220:10SOU - BKK
2 stops39h 15mQatar Airways
Sun 18/109:05BKK - SOU
2 stops41h 35mQatar Airways
Deal found 17/12£1,501
Tue 16/1212:25SOU - BKK
2 stops24h 00mQatar Airways
Sat 31/109:05BKK - SOU
2 stops37h 30mQatar Airways
Deal found 16/12£1,516
Sat 27/1216:00SOU - BKK
2 stops38h 15mMultiple Airlines
Fri 27/215:00BKK - SOU
2 stops32h 45mMultiple Airlines
Deal found 16/12£1,572
Fri 26/1220:10SOU - BKK
2 stops33h 55mQatar Airways
Sun 18/109:05BKK - SOU
2 stops37h 30mQatar Airways
Deal found 16/12£1,572
Wed 31/1212:25SOU - BKK
2 stops41h 40mQatar Airways
Thu 22/109:05BKK - SOU
2 stops37h 30mQatar Airways
Deal found 17/12£1,605
Wed 31/1212:25SOU - BKK
2 stops41h 40mQatar Airways
Sun 18/109:05BKK - SOU
2 stops41h 35mQatar Airways
Deal found 17/12£1,632
Sat 27/1209:30SOU - BKK
2 stops25h 55mQatar Airways
Sat 17/109:05BKK - SOU
2 stops41h 35mQatar Airways
Deal found 17/12£1,638
Wed 31/1208:40SOU - BKK
2 stops38h 25mMultiple Airlines
Thu 22/108:00BKK - SOU
2 stops30h 50mMultiple Airlines
Deal found 16/12£1,664

Find flight deals from Portsmouth to Bangkok

Keep the following information in mind while searching for Portsmouth to Bangkok flight deals. Data was last updated 18 December 2025.

Round-trip from

£645

One-way from

£597

Popular in

July

Cheapest in

May

Average price

£1,255
17/1-24/1
  • 17/1-24/1
  • 4 total stops
  • 57h 10m total
  • Portsmouth to Bangkok
31/3
  • 31/3
  • 2 total stops
  • 38h 35m total
  • Portsmouth to Bangkok
Highest demand for flights based on searches. 12% potential increase in price (£91 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£33 potential savings vs. average return price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Bangkok 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 858,174 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from Portsmouth to Bangkok that are best for you.

Fly from

Portsmouth

Fly to

Bangkok

Route

Depart

Return

Price

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Thu 29/1

09:30-19:25

2 stops26h 55m

Bangkok Suvarnabhumi

Thu 12/2

18:55-19:40

2 stops31h 45m

£777

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Thu 29/1

09:30-19:25

2 stops26h 55m

Bangkok Suvarnabhumi

Wed 11/2

09:05-19:40

2 stops41h 35m

£779

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 3/2

12:25-19:25

2 stops24h 00m

Bangkok Suvarnabhumi

Wed 11/2

08:15-19:40

2 stops42h 25m

£781

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Sun 18/1

20:10-09:50

3 stops30h 40m

Bangkok Suvarnabhumi

Tue 27/1

22:05-17:05

2 stops26h 00m

£783

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 17/3

12:00-13:15

2 stops42h 15m

Bangkok Suvarnabhumi

Tue 7/4

07:05-14:45

2 stops37h 40m

£877

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Sun 18/1

20:10-06:40

2 stops27h 30m

Bangkok Suvarnabhumi

Thu 22/1

18:55-15:35

2 stops27h 40m

£902

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 2/2

09:30-19:25

2 stops26h 55m

Bangkok Suvarnabhumi

Thu 5/2

02:00-19:40

2 stops24h 40m

£904

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Thu 19/2

08:40-06:05

2 stops38h 25m

Bangkok Suvarnabhumi

Fri 6/3

08:05-16:45

2 stops39h 40m

£909

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 16/3

09:30-19:25

2 stops26h 55m

Bangkok Suvarnabhumi

Wed 18/3

03:00-19:40

2 stops23h 40m

£1,129

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Sat 28/3

17:15-05:30

2 stops53h 15m

Bangkok Suvarnabhumi

Sat 11/4

07:05-14:30

2 stops37h 25m

£1,200

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 17 results
1
2

Best time to book a flight from Portsmouth to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok from Portsmouth with our price prediction graph.
Estimated return 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 Portsmouth to Bangkok

What is the cheapest month to book a flight from Portsmouth to Bangkok?

Currently, November is the cheapest month in which you can book a flight from Portsmouth to Bangkok (average of £339). Flying from Portsmouth to Bangkok in July is currently the most expensive (average of £553). 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 P0R to BKK?

Find hourly flight availability from Portsmouth to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2025.

When flying from Portsmouth to Bangkok, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 15% versus a flight at midday.

What is the cheapest day to fly from Portsmouth to Bangkok?

Use this chart to determine the cheapest time to fly return from Portsmouth to Bangkok. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Bangkok flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Bangkok

Explore weekly flight availability from Portsmouth to Bangkok. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 December 2025.

The most flights from P0R to TH1 are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated 18 December 2025.
See what other customers who have flown with KLM from Portsmouth to Bangkok have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.7

Boarding

7.8

Crew

8.4

Comfort

7.6

Food

7.2

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Overall

7.7

Boarding

7.8

Crew

8.4

Comfort

7.6

Food

7.2

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Bangkok. 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 Portsmouth to Bangkok?

    A quick flight from Portsmouth to Bangkok can take about 26h 55m. Qatar Airways provides one of the quickest options available for as low as £777. The distance between Portsmouth and Bangkok is about 5995 mi.

  • What are the most reliable airlines from Portsmouth to Bangkok?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Bangkok on time: EVA Air (88%), Thai Airways (84%), Air Canada (80%).

  • What are the cheapest flights from Portsmouth to Bangkok?

    Looking for the cheapest flight from Portsmouth to Bangkok? While on average our users pay £2,347, our data indicates the cheapest price to be £467. The most popular route (Southampton Eastleigh - Bangkok Suvarnabhumi), is priced around £733.

  • Can I find deals for flights from Portsmouth to Bangkok that include hotel bookings?

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

  • How can I find direct flights from Portsmouth to Bangkok?

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

  • Can I find deals for business class flights from Portsmouth to Bangkok?

    Yes. Cheapflights offers flight deals from Portsmouth to Bangkok 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 Portsmouth to Bangkok?

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to Bangkok (average of £339). Flying from Portsmouth to Bangkok in July is currently the most expensive (average of £553). 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.

Alternative routes for Portsmouth to Bangkok

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Bangkok

Discover the top 10 airlines that operate flights from Portsmouth to Bangkok. 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 858,174 searches. Data last updated 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkmenistan AirlinesCheapest£291Average£558FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Hainan AirlinesCheapest£380Average£433FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Hahn AirCheapest£439Average£648FlexibilityNo cancel feeOn-timeN/A
Search Hahn Air flights
Royal Brunei AirlinesCheapest£470Average£538FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
LufthansaCheapest£473Average£736FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£479Average£736FlexibilityNo cancel feeOn-time79%
Search SWISS flights
A.P.G.Cheapest£482Average£607FlexibilityNo cancel feeOn-timeN/A
Search A.P.G. flights
Turkish AirlinesCheapest£486Average£614FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
KLMCheapest£495Average£811FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£495Average£741FlexibilityNo cancel feeOn-time77%
Search Air France flights

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 Portsmouth to Bangkok?

Cheapflights helps you search for flights from Portsmouth to Bangkok 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 Portsmouth to Bangkok?

Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to Bangkok 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 Portsmouth to Bangkok with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Bangkok, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Portsmouth to Bangkok become cheaper?

Of course! You can now track prices for flights from Portsmouth to Bangkok and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.