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Cheap flights from Portsmouth to Thailand from £372

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
15 Jul — 22 Jul1
1 adult

Cheap flight deals from Portsmouth to Thailand

Keep the following information in mind while searching for Portsmouth to Thailand flight deals. Data was last updated 10 July 2025.

Round-trip from

£649

One-way from

£372

Popular in

December

Cheapest in

May

Average price

£825
KLM
  • KLM
  • 24/9-28/9
  • 4 total stops
  • 69h 05m total
  • Portsmouth to Thailand
18/10
  • 18/10
  • 3 total stops
  • 58h 30m total
  • Portsmouth to Thailand
Highest demand for flights based on searches. 8% potential increase in price (£42 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Portsmouth to Thailand

Cheapest flights from Portsmouth to Thailand
Explore the most affordable flight options available from Portsmouth to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2025.

Wed 24/909:20SOU - BKK
2 stops17h 55mKLM
Sun 28/911:35BKK - SOU
2 stops51h 10mKLM
Deal found 9/7£649
Wed 24/909:20SOU - HKT
2 stops22h 45mKLM
Sun 28/921:55HKT - SOU
2 stops40h 50mKLM
Deal found 6/7£734
Tue 18/1109:30SOU - BKK
2 stops26h 15mQatar Airways
Thu 4/1207:35BKK - SOU
2 stops43h 05mQatar Airways
Deal found 9/7£753
Fri 22/818:25SOU - BKK
3 stops35h 55mMultiple Airlines
Fri 29/813:50BKK - SOU
2 stops31h 55mMultiple Airlines
Deal found 8/7£774
Thu 25/917:35SOU - USM
2 stops18h 40mKLM
Mon 29/907:00USM - SOU
2 stops31h 45mKLM
Deal found 9/7£826
Wed 5/1109:30SOU - HKT
2 stops26h 25mQatar Airways
Wed 26/1108:20HKT - SOU
2 stops42h 20mQatar Airways
Deal found 8/7£940
Mon 28/716:30SOU - HKT
2 stops40h 50mMultiple Airlines
Mon 18/822:15HKT - SOU
2 stops27h 10mMultiple Airlines
Deal found 9/7£1,229
Fri 22/818:25SOU - USM
3 stops31h 25mMultiple Airlines
Fri 29/809:15USM - SOU
3 stops36h 30mMultiple Airlines
Deal found 8/7£1,273

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth to Thailand 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 10 July 2025.
Use the filters below to find and compare flights from Portsmouth to Thailand that are best for you.

Fly from

Portsmouth

Fly to

Thailand

Route

Depart

Return

Price

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 24/9

09:20-09:15

2 stops17h 55m

Bangkok Suvarnabhumi

Sun 28/9

11:35-08:45

2 stops51h 10m

£649

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 18/11

09:30-18:45

2 stops26h 15m

Bangkok Suvarnabhumi

Thu 4/12

07:35-19:40

2 stops43h 05m

£753

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

Wed 24/9

09:20-18:30

2 stops27h 10m

Phuket City

Sun 28/9

21:55-08:45

2 stops40h 50m

£757

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Fri 22/8

18:25-12:20

3 stops35h 55m

Bangkok Suvarnabhumi

Fri 29/8

13:50-15:45

2 stops31h 55m

£774

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

Sun 23/11

16:05-23:35

2 stops24h 30m

Phuket City

Fri 28/11

02:50-15:35

2 stops43h 45m

£787

SouthamptonKo Samui

SOU - USM

SOUUSM

Southampton Eastleigh

Thu 25/9

17:35-18:15

2 stops18h 40m

Ko Samui

Mon 29/9

07:00-08:45

2 stops31h 45m

£826

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

Wed 19/11

20:10-18:55

2 stops39h 45m

Phuket City

Wed 3/12

08:20-19:40

2 stops42h 20m

£853

SouthamptonKo Samui

SOU - USM

SOUUSM

Southampton Eastleigh

Fri 22/8

18:25-07:50

3 stops31h 25m

Ko Samui

Fri 29/8

09:15-15:45

3 stops36h 30m

£1,273

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Sat 18/10

15:20-07:50

3 stops58h 30m

£372

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Wed 3/9

09:20-09:30

1 stop18h 10m

£547

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 12 results
1
2

Best time to book a flight from Portsmouth to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand 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 Thailand

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

Currently, May is the cheapest month in which you can book a flight from Portsmouth to Thailand (average of £718). Flying from Portsmouth to Thailand 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 TH?

Find hourly flight availability from Portsmouth to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Thailand as you normally would.

Weekly flight availability from Portsmouth to Thailand

Explore weekly flight availability from Portsmouth to Thailand. 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 10 July 2025.

The most flights from P0R to TH0 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 Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated 10 July 2025.
Read reviews from past customers who have flown with KLM and Qatar Airways from Portsmouth to Thailand. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.1

Overall

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the most popular routes from Portsmouth to Thailand?

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

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Thailand consider choosing Thai Airways (71%), EVA Air (70%) or Air Canada (67%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Thailand?

    The cheapest flight price from Portsmouth to Thailand is £364. On average you can expect to pay £2,566. The most popular route, (Southampton Eastleigh - Bangkok Suvarnabhumi), can usually be booked for £649.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Portsmouth to Thailand (average of £718). Flying from Portsmouth to Thailand 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

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Alternative routes for Portsmouth to Thailand

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

Top 10 airlines flying from Portsmouth to Thailand

Discover the top 10 airlines that operate flights from Portsmouth to Thailand. 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 10 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£106Average£143FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Turkmenistan AirlinesCheapest£287Average£548FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Hainan AirlinesCheapest£374Average£432FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Norse Atlantic UKCheapest£448Average£563FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Royal JordanianCheapest£454Average£635FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
Royal Brunei AirlinesCheapest£463Average£552FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
LufthansaCheapest£478Average£826FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£479Average£759FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest£481Average£709FlexibilityNo cancel feeOn-time77%
Search Air France flights
ITA AirwaysCheapest£488Average£569FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portsmouth to Thailand?

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Thailand flexibly with Cheapflights today.

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

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