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Cheap flights from Portsmouth to Thailand from £358

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
9 lug — 16 lug1
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 4 luglio 2025.

Round-trip from

£640

One-way from

£358

Popular in

December

Cheapest in

May

Average price

£821
KLM
  • KLM
  • 30/9-10/10
  • 3 total stops
  • 60h 20m total
  • Portsmouth to Thailand
Search Deals
31/10
  • 31/10
  • 3 total stops
  • 53h 10m total
  • Portsmouth to Thailand
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 4 luglio 2025.

mar 30/917:35SOU - BKK
2 stops33h 40mKLM
ven 10/1012:05BKK - SOU
1 stop26h 40mKLM
Deal found 2/7£640
gio 2/1020:00SOU - BKK
2 stops28h 30mMultiple Airlines
gio 9/1010:05BKK - SOU
2 stops39h 25mMultiple Airlines
Deal found 2/7£682
dom 17/809:20SOU - HKT
2 stops25h 30mMultiple Airlines
dom 24/807:30HKT - SOU
2 stops31h 15mMultiple Airlines
Deal found 3/7£687
mer 15/1009:10SOU - BKK
2 stops22h 15mQatar Airways
mar 28/1002:00BKK - SOU
2 stops24h 40mQatar Airways
Deal found 3/7£710
mer 24/909:20SOU - HKT
2 stops22h 45mKLM
dom 28/921:55HKT - SOU
2 stops40h 50mKLM
Deal found 3/7£812
mer 5/1109:30SOU - HKT
2 stops26h 25mQatar Airways
lun 1/1208:20HKT - SOU
2 stops42h 20mQatar Airways
Deal found 3/7£877
gio 25/909:20SOU - USM
2 stops29h 50mKLM
lun 29/908:45USM - SOU
2 stops38h 15mKLM
Deal found 30/6£901

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 4 luglio 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

mar 30/9

17:35-09:15

2 stops33h 40m

Bangkok Suvarnabhumi

ven 10/10

12:05-08:45

1 stop26h 40m

£640

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

gio 2/10

20:00-06:30

2 stops28h 30m

Bangkok Suvarnabhumi

gio 9/10

10:05-19:30

2 stops39h 25m

£682

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

dom 17/8

09:20-16:50

3 stops25h 30m

Phuket City

dom 24/8

07:30-08:45

2 stops31h 15m

£687

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

mer 15/10

09:10-13:25

2 stops22h 15m

Bangkok Suvarnabhumi

mer 29/10

18:55-19:40

2 stops31h 45m

£710

SouthamptonKo Samui

SOU - USM

SOUUSM

Southampton Eastleigh

gio 25/9

17:35-21:10

2 stops21h 35m

Ko Samui

lun 29/9

08:00-17:00

2 stops39h 00m

£799

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

mer 24/9

09:20-14:05

2 stops22h 45m

Phuket City

dom 28/9

21:55-08:45

2 stops40h 50m

£812

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

mer 5/11

09:30-18:55

2 stops26h 25m

Phuket City

lun 1/12

08:20-19:40

2 stops42h 20m

£877

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

ven 31/10

14:25-02:35

3 stops53h 10m

£358

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

ven 18/7

20:00-17:40

3 stops39h 40m

£543

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

mar 2/12

20:10-05:55

2 stops26h 45m

£638

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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 £717). 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 4 luglio 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 4 luglio 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 4 luglio 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.
KLM
7.8
Good
1,367 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.2

Crew

8.4

Boarding

7.8

Entertainment

7.1

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.
KLM
7.8
Good
1,367 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.2

Crew

8.4

Boarding

7.8

Entertainment

7.1

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.
Qatar Airways
7.4
Good
3,588 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Overall

7.8

Comfort

7.7

Food

7.2

Crew

8.4

Boarding

7.8

Entertainment

7.1

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?

    Most travelers choose Southampton Eastleigh - Bangkok Suvarnabhumi, Southampton Eastleigh - Phuket City or Southampton Eastleigh - Ko Samui when deciding on the best route 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 £354. On average you can expect to pay £2,535. The most popular route, (Southampton Eastleigh - Bangkok Suvarnabhumi), can usually be booked for £682.

  • 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 £717). 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

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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.
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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 4 luglio 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£106Average£157FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Turkmenistan AirlinesCheapest£286Average£546FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Hainan AirlinesCheapest£372Average£430FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
KLMCheapest£420Average£760FlexibilityNo cancel feeOn-time75%
Search KLM flights
Norse Atlantic UKCheapest£448Average£559FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
Royal JordanianCheapest£452Average£631FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
Royal Brunei AirlinesCheapest£461Average£535FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
SWISSCheapest£476Average£747FlexibilityNo cancel feeOn-time79%
Search SWISS flights
LufthansaCheapest£478Average£820FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£479Average£735FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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

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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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