How long is the flight from Portsmouth to Bangkok?

A quick flight from Portsmouth to Bangkok can take about 18h 10m. KLM provides one of the quickest options available for as low as £718. The distance between Portsmouth and Bangkok is about 5995 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Bangkok ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

What are the cheapest flights from Portsmouth to Bangkok?

Looking for the cheapest flight from Portsmouth to Bangkok? While on average our users pay £2,670, our data indicates the cheapest price to be £409. The most popular route (Southampton Eastleigh - Bangkok Suvarnabhumi), is priced around £583.

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 (82%), Thai Airways (77%), Air Canada (69%).

What are the most popular airlines that fly from Portsmouth to Bangkok?

Consider Sichuan Airlines, A.P.G. or Air France when booking your flight. These represent the most popular airlines when flying from Portsmouth to Bangkok.

How far in advance should I book a flight from Portsmouth to Bangkok?

To save on the cost of your flight from Portsmouth to Bangkok, book at least 57 days before your planned departure. Booking around this time can save you about 51% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £572 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £694.

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

Flights from Portsmouth to Bangkok lean towards being more expensive in December. Prices are generally better when you fly from Portsmouth to Bangkok in May, with the cheapest ticket starting at £280.

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.

£416+ Flights from Portsmouth to Bangkok

Cheap flight deals from Portsmouth to Bangkok

Round-trip from	£639
One-way from	£416
Popular in	December
Cheapest in	May
Average price	£653

14/10-17/10
4 total stops
61h 55m total
Portsmouth to Bangkok

Search Deals

3/10
3 total stops
42h 35m total
Portsmouth to Bangkok

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£93 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£39 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Portsmouth to Bangkok

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 12 September 2025.

Tue 16/917:35SOU - BKK

2 stops33h 40mKLM

Tue 23/912:05BKK - SOU

1 stop26h 40mKLM

Deal found 11/9£583

Mon 15/920:00SOU - BKK

2 stops40h 50mMultiple Airlines

Mon 22/908:55BKK - SOU

2 stops53h 10mMultiple Airlines

Deal found 10/9£610

Tue 14/1009:10SOU - BKK

2 stops32h 45mMultiple Airlines

Fri 17/1009:30BKK - SOU

2 stops29h 10mMultiple Airlines

Deal found 10/9£639

Fri 3/1020:00SOU - BKK

2 stops45h 55mMultiple Airlines

Fri 17/1009:30BKK - SOU

2 stops29h 10mMultiple Airlines

Deal found 10/9£675

Mon 15/917:35SOU - BKK

2 stops57h 40mKLM

Mon 22/912:05BKK - SOU

1 stop26h 40mKLM

Deal found 10/9£692

Wed 24/909:20SOU - BKK

1 stop18h 10mKLM

Sun 28/911:35BKK - SOU

2 stops51h 10mKLM

Deal found 10/9£718

Wed 12/1120:10SOU - BKK

2 stops27h 05mQatar Airways

Mon 17/1120:30BKK - SOU

2 stops30h 10mQatar Airways

Deal found 11/9£727

Thu 13/1109:30SOU - BKK

2 stops25h 55mQatar Airways

Thu 20/1109:05BKK - SOU

2 stops41h 35mQatar Airways

Deal found 11/9£728

Tue 11/1120:10SOU - BKK

2 stops40h 15mQatar Airways

Tue 18/1120:30BKK - SOU

2 stops30h 10mQatar Airways

Deal found 11/9£729

Best flights from Portsmouth to Bangkok
Discover carefully curated flight deals from Portsmouth to Bangkok that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Wed 24/909:20SOU - BKK

1 stop18h 10mKLM

Sun 28/911:35BKK - SOU

2 stops51h 10mKLM

Deal found 10/9£718

Mon 24/1109:30SOU - BKK

2 stops25h 55mQatar Airways

Mon 8/1202:00BKK - SOU

2 stops24h 40mQatar Airways

Deal found 11/9£727

Thu 22/120:10SOU - BKK

2 stops33h 05mQatar Airways

Thu 5/208:15BKK - SOU

2 stops38h 20mQatar Airways

Deal found 11/9£729

Tue 18/1120:10SOU - BKK

2 stops33h 55mQatar Airways

Thu 4/1209:05BKK - SOU

2 stops37h 30mQatar Airways

Deal found 10/9£730

Wed 29/1012:25SOU - BKK

2 stops48h 00mQatar Airways

Mon 17/1108:15BKK - SOU

2 stops42h 25mQatar Airways

Deal found 10/9£738

Fri 21/1120:10SOU - BKK

2 stops33h 55mQatar Airways

Mon 15/1220:30BKK - SOU

2 stops30h 10mQatar Airways

Deal found 11/9£754

Tue 27/112:25SOU - BKK

2 stops41h 40mQatar Airways

Sat 14/218:55BKK - SOU

2 stops31h 45mQatar Airways

Deal found 11/9£756

Wed 21/112:25SOU - BKK

2 stops34h 50mQatar Airways

Sat 14/218:55BKK - SOU

2 stops31h 45mQatar Airways

Deal found 12/9£760

Last-minute flights from Portsmouth to Bangkok
Discover last-minute flight deals from Portsmouth to Bangkok. Data last updated 12 September 2025 and is based on user searches.

Mon 15/920:00SOU - BKK

2 stops40h 50mMultiple Airlines

Mon 22/908:55BKK - SOU

2 stops53h 10mMultiple Airlines

Deal found 10/9£610

Mon 15/917:35SOU - BKK

2 stops57h 40mKLM

Mon 22/912:05BKK - SOU

1 stop26h 40mKLM

Deal found 10/9£692

Tue 16/917:35SOU - BKK

2 stops33h 40mKLM

Tue 23/912:05BKK - SOU

1 stop26h 40mKLM

Deal found 11/9£583

Wed 24/909:20SOU - BKK

1 stop18h 10mKLM

Sun 28/911:35BKK - SOU

2 stops51h 10mKLM

Deal found 10/9£718

Thu 25/920:00SOU - BKK

2 stops40h 50mMultiple Airlines

Sat 27/902:55BKK - SOU

2 stops59h 20mMultiple Airlines

Deal found 11/9£737

Thu 25/909:20SOU - BKK

1 stop18h 10mKLM

Sun 28/911:35BKK - SOU

2 stops35h 25mKLM

Deal found 11/9£738

Fri 3/1020:00SOU - BKK

2 stops45h 55mMultiple Airlines

Fri 17/1009:30BKK - SOU

2 stops29h 10mMultiple Airlines

Deal found 10/9£675

Tue 14/1009:10SOU - BKK

2 stops32h 45mMultiple Airlines

Fri 17/1009:30BKK - SOU

2 stops29h 10mMultiple Airlines

Deal found 10/9£639

Wed 29/1012:25SOU - BKK

2 stops48h 00mQatar Airways

Mon 17/1120:30BKK - SOU

2 stops30h 10mQatar Airways

Deal found 12/9£735

One-way flights from Portsmouth to Bangkok
Search for one-way flight options from Portsmouth to Bangkok. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Fri 3/1012:30SOU - BKK

3 stops42h 35mMultiple Airlines

Deal found 10/9£416

Thu 15/120:10SOU - BKK

2 stops33h 55mQatar Airways

Deal found 11/9£436

Fri 16/109:30SOU - BKK

2 stops20h 35mQatar Airways

Deal found 11/9£461

Sat 4/1009:40SOU - BKK

2 stops21h 45mQatar Airways

Deal found 12/9£738

Sat 1/1109:30SOU - BKK

2 stops38h 10mQatar Airways

Deal found 11/9£743

Sun 14/1209:30SOU - BKK

2 stops25h 55mQatar Airways

Deal found 11/9£894

Fri 26/1220:10SOU - BKK

2 stops27h 30mQatar Airways

Deal found 11/9£1,051

Sat 27/1209:30SOU - BKK

2 stops20h 35mQatar Airways

Deal found 11/9£1,135

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 24/9

09:20-09:30

1 stop18h 10m

Bangkok Suvarnabhumi

Sun 28/9

11:35-08:45

2 stops51h 10m

£718

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 24/11

09:30-18:25

2 stops25h 55m

Bangkok Suvarnabhumi

Mon 8/12

02:00-19:40

2 stops24h 40m

£727

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Thu 22/1

20:10-12:15

2 stops33h 05m

Bangkok Suvarnabhumi

Thu 5/2

08:15-15:35

2 stops38h 20m

£729

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 18/11

20:10-13:05

2 stops33h 55m

Bangkok Suvarnabhumi

Thu 4/12

09:05-15:35

2 stops37h 30m

£730

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 29/10

12:25-19:25

2 stops48h 00m

Bangkok Suvarnabhumi

Mon 17/11

08:15-19:40

2 stops42h 25m

£738

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Fri 21/11

20:10-13:05

2 stops33h 55m

Bangkok Suvarnabhumi

Mon 15/12

20:30-19:40

2 stops30h 10m

£754

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 27/1

12:25-13:05

2 stops41h 40m

Bangkok Suvarnabhumi

Sat 14/2

18:55-19:40

2 stops31h 45m

£756

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 21/1

12:25-06:15

2 stops34h 50m

Bangkok Suvarnabhumi

Sat 14/2

18:55-19:40

2 stops31h 45m

£760

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Fri 16/1

09:30-13:05

2 stops20h 35m

£461

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Fri 3/10

20:15-11:20

2 stops33h 05m

£483

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 15 results

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, May is the cheapest month in which you can book a flight from Portsmouth to Bangkok (average of £717). Flying from Portsmouth to Bangkok in December is currently the most expensive (average of £1,123). 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?

When flying from Portsmouth to Bangkok, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

Weekly flight availability from Portsmouth to Bangkok

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

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.

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

How long is the flight from Portsmouth to Bangkok?
A quick flight from Portsmouth to Bangkok can take about 18h 10m. KLM provides one of the quickest options available for as low as £718. The distance between Portsmouth and Bangkok is about 5995 mi. This flight may include one or multiple stops.
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 (82%), Thai Airways (77%), Air Canada (69%).
What are the cheapest flights from Portsmouth to Bangkok?
Looking for the cheapest flight from Portsmouth to Bangkok? While on average our users pay £2,670, our data indicates the cheapest price to be £409. The most popular route (Southampton Eastleigh - Bangkok Suvarnabhumi), is priced around £583.
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, May is the cheapest month in which you can book a flight from Portsmouth to Bangkok (average of £717). Flying from Portsmouth to Bangkok in December is currently the most expensive (average of £1,123). 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

Alternative routes for Portsmouth to Bangkok

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Complete your trip

Bangkok car hire

Bangkok Suvarnabhumi Airport car hire

Bangkok Don Mueang Intl Airport car hire

Rayong Utapao Rayong Pattaya Airport car hire

Ubon Ratchathani car hire

Hua Hin car hire

Nakhon Phanom car hire

Top 10 airlines flying from Portsmouth to Bangkok

Airline	Cheapest	Average	Flexibility	On-time
Turkmenistan Airlines	Cheapest£288	Average£552	FlexibilityNo cancel fee	On-time63%	Search Turkmenistan Airlines flights
SAUDIA	Cheapest£333	Average£538	FlexibilityNo cancel fee	On-time86%	Search SAUDIA flights
Norse Atlantic UK	Cheapest£346	Average£554	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Hainan Airlines	Cheapest£375	Average£430	FlexibilityNo cancel fee	On-time61%	Search Hainan Airlines flights
Hahn Air	Cheapest£440	Average£631	FlexibilityNo cancel fee	On-timeN/A	Search Hahn Air flights
Royal Brunei Airlines	Cheapest£464	Average£539	FlexibilityNo cancel fee	On-time84%	Search Royal Brunei Airlines flights
A.P.G.	Cheapest£466	Average£580	FlexibilityNo cancel fee	On-timeN/A	Search A.P.G. flights
KLM	Cheapest£482	Average£788	FlexibilityNo cancel fee	On-time75%	Search KLM flights
SWISS	Cheapest£482	Average£734	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Turkish Airlines	Cheapest£484	Average£631	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights

Fly with Cheapflights

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.

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Cheap flights from Portsmouth to Bangkok from £416

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Bangkok

Keep the following information in mind while searching for Portsmouth to Bangkok flight deals. Data was last updated 12 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portsmouth to Bangkok

Cheapest flights from Portsmouth to BangkokExplore 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 12 September 2025.

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 12 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Bangkok that are best for you.

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.

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?

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 12 September 2025.

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.

Weekly flight availability from Portsmouth to Bangkok

Reviews of airlines servicing Bangkok

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.

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?

What are the most reliable airlines from Portsmouth to Bangkok?

What are the cheapest flights from Portsmouth to Bangkok?

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

How can I find direct flights from Portsmouth to Bangkok?

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

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

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

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?

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Bangkok?

Can Cheapflights find flights from Portsmouth to Bangkok with no change fees?

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

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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 12 September 2025.