How long is the flight from Portsmouth to Bangkok?

A quick flight from Portsmouth to Bangkok can take about 18h 15m. KLM provides one of the quickest options available for as low as £695. 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 £2,320, our data indicates the cheapest price to be £463. The most popular route (Southampton Eastleigh - Bangkok Suvarnabhumi), is priced around £640.

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%).

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.

£640+ Flights from Portsmouth to Bangkok

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 28 December 2025.

Wed 31/1208:35SOU - BKK

2 stops22h 55mMultiple Airlines

Wed 7/115:30BKK - SOU

2 stops33h 00mMultiple Airlines

Deal found 26/12£1,052

Wed 31/1217:30SOU - BKK

1 stop33h 35mKLM

Wed 7/109:30BKK - SOU

2 stops53h 55mKLM

Deal found 26/12£1,057

Wed 31/1208:40SOU - BKK

2 stops38h 25mMultiple Airlines

Tue 20/115:00BKK - SOU

2 stops56h 05mMultiple Airlines

Deal found 26/12£1,271

Wed 31/1212:25SOU - BKK

2 stops40h 50mQatar Airways

Wed 21/103:00BKK - SOU

2 stops23h 40mQatar Airways

Deal found 26/12£3,886

Wed 31/1212:25SOU - BKK

2 stops48h 00mQatar Airways

Fri 23/118:55BKK - SOU

2 stops55h 45mQatar Airways

Deal found 26/12£3,972

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 28 December 2025.

Wed 4/308:50SOU - BKK

1 stop18h 15mKLM

Tue 17/312:15BKK - SOU

1 stop27h 05mKLM

Deal found 27/12£695

Tue 10/212:25SOU - BKK

2 stops24h 00mQatar Airways

Tue 10/309:05BKK - SOU

2 stops37h 30mQatar Airways

Deal found 27/12£720

Wed 1/409:05SOU - BKK

3 stops27h 05mMultiple Airlines

Wed 22/418:45BKK - SOU

3 stops28h 55mMultiple Airlines

Deal found 26/12£730

Mon 1/619:55SOU - BKK

2 stops51h 35mMultiple Airlines

Sun 14/607:05BKK - SOU

2 stops32h 20mMultiple Airlines

Deal found 26/12£741

Mon 20/420:00SOU - BKK

2 stops35h 20mQatar Airways

Wed 29/402:05BKK - SOU

2 stops23h 25mQatar Airways

Deal found 27/12£791

Fri 27/217:35SOU - BKK

1 stop30h 35mKLM

Thu 12/312:15BKK - SOU

1 stop27h 05mKLM

Deal found 27/12£805

Wed 22/419:55SOU - BKK

2 stops27h 35mMultiple Airlines

Wed 27/507:05BKK - SOU

2 stops56h 20mMultiple Airlines

Deal found 27/12£745

Thu 19/220:10SOU - BKK

2 stops40h 15mQatar Airways

Sun 8/318:55BKK - SOU

2 stops27h 40mQatar Airways

Deal found 27/12£805

Sun 8/309:30SOU - BKK

2 stops19h 45mQatar Airways

Mon 16/318:55BKK - SOU

2 stops51h 40mQatar Airways

Deal found 26/12£811

Mon 26/109:30SOU - BKK

2 stops26h 55mQatar Airways

Thu 5/220:30BKK - SOU

2 stops30h 10mQatar Airways

Deal found 26/12£826

Sat 21/209:30SOU - BKK

2 stops26h 55mQatar Airways

Sun 8/318:55BKK - SOU

2 stops27h 40mQatar Airways

Deal found 27/12£829

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 28 December 2025.

Tue 10/220:30SOU - BKK

2 stops50h 35mMultiple Airlines

Deal found 27/12£640

Thu 8/120:10SOU - BKK

2 stops33h 55mQatar Airways

Deal found 26/12£768

Sat 3/109:45SOU - BKK

2 stops61h 20mMultiple Airlines

Deal found 26/12£1,003

Mon 5/109:30SOU - BKK

2 stops26h 55mQatar Airways

Deal found 26/12£1,126

Sun 4/120:10SOU - BKK

2 stops27h 30mQatar Airways

Deal found 26/12£1,152

Mon 20/419:55SOU - BKK

2 stops51h 35mMultiple Airlines

Deal found 26/12£2,120

Find flight deals from Portsmouth to Bangkok

Round-trip from	£639
Popular in	December
Cheapest in	May
Average price	£1,396

4/3-17/3
3 total stops
49h 25m total
Portsmouth to Bangkok

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£85 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£36 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 4/3

08:50-10:05

1 stop18h 15m

Bangkok Suvarnabhumi

Tue 17/3

12:15-08:20

1 stop27h 05m

£695

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 10/2

12:25-19:25

2 stops24h 00m

Bangkok Suvarnabhumi

Tue 10/3

09:05-15:35

2 stops37h 30m

£720

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 1/4

09:05-18:10

3 stops27h 05m

Bangkok Suvarnabhumi

Wed 22/4

18:45-17:40

3 stops28h 55m

£730

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 1/6

19:55-05:30

2 stops51h 35m

Bangkok Suvarnabhumi

Sun 14/6

07:05-09:25

2 stops32h 20m

£741

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 22/4

19:55-05:30

2 stops27h 35m

Bangkok Suvarnabhumi

Wed 27/5

07:05-09:25

2 stops56h 20m

£745

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 20/4

20:00-13:20

2 stops35h 20m

Bangkok Suvarnabhumi

Wed 29/4

02:05-19:30

2 stops23h 25m

£791

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Fri 27/2

17:35-07:10

1 stop30h 35m

Bangkok Suvarnabhumi

Thu 12/3

12:15-08:20

1 stop27h 05m

£805

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Thu 19/2

20:10-19:25

2 stops40h 15m

Bangkok Suvarnabhumi

Sun 8/3

18:55-15:35

2 stops27h 40m

£805

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Sun 8/3

09:30-12:15

2 stops19h 45m

Bangkok Suvarnabhumi

Mon 16/3

18:55-15:35

2 stops51h 40m

£811

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 26/1

09:30-19:25

2 stops26h 55m

Bangkok Suvarnabhumi

Thu 5/2

20:30-19:40

2 stops30h 10m

£826

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 18 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, November is the cheapest month in which you can book a flight from Portsmouth to Bangkok (average of £335). Flying from Portsmouth to Bangkok in July is currently the most expensive (average of £530). 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.

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

7.7

Good

1,435 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,435 reviews

KLM

7.7

Good

1,435 reviews

Check prices

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

How long is the flight from Portsmouth to Bangkok?
A quick flight from Portsmouth to Bangkok can take about 18h 15m. KLM provides one of the quickest options available for as low as £695. 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 (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 £2,320, our data indicates the cheapest price to be £463. The most popular route (Southampton Eastleigh - Bangkok Suvarnabhumi), is priced around £640.
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 £335). Flying from Portsmouth to Bangkok in July is currently the most expensive (average of £530). 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

Heathrow to Suvarnabhumi flights

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Top 10 airlines flying from Portsmouth to Bangkok

Airline	Cheapest	Average	Flexibility	On-time
Turkmenistan Airlines	Cheapest£288	Average£556	FlexibilityNo cancel fee	On-time63%	Search Turkmenistan Airlines flights
Hainan Airlines	Cheapest£376	Average£429	FlexibilityNo cancel fee	On-time61%	Search Hainan Airlines flights
Hahn Air	Cheapest£441	Average£647	FlexibilityNo cancel fee	On-timeN/A	Search Hahn Air flights
Gulf Air	Cheapest£441	Average£580	FlexibilityNo cancel fee	On-time67%	Search Gulf Air flights
Royal Brunei Airlines	Cheapest£466	Average£533	FlexibilityNo cancel fee	On-time84%	Search Royal Brunei Airlines flights
Lufthansa	Cheapest£468	Average£713	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Royal Jordanian	Cheapest£469	Average£682	FlexibilityNo cancel fee	On-time61%	Search Royal Jordanian flights
SWISS	Cheapest£475	Average£734	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
A.P.G.	Cheapest£478	Average£603	FlexibilityNo cancel fee	On-timeN/A	Search A.P.G. flights
Air France	Cheapest£488	Average£723	FlexibilityNo cancel fee	On-time77%	Search Air France 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 £640

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 28 December 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 28 December 2025.

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 28 December 2025.

Round-trip from

Popular in

Cheapest in

Average price

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 28 December 2025.

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 28 December 2025.

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 28 December 2025.