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Cheap flights from Portsmouth to Thailand 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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
11 Mar — 18 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Thailand

Enter your travel dates to find the best prices.

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 9 February 2026.

Tue 8/917:20
SOU
-
BKK
1 stop34h 10m
KLM
Mon 5/1012:05
BKK
-
SOU
1 stop34h 45m
KLM
Deal found 9/2£527
Fri 28/809:15
SOU
-
BKK
1 stop18h 15m
KLM
Fri 18/912:05
BKK
-
SOU
1 stop26h 40m
KLM
Deal found 6/2£614
Fri 28/817:05
SOU
-
BKK
2 stops19h 05m
Multiple Airlines
Fri 18/915:05
BKK
-
SOU
2 stops31h 30m
Multiple Airlines
Deal found 6/2£670
Sat 7/309:30
SOU
-
BKK
2 stops49h 30m
Multiple Airlines
Sat 14/314:40
BKK
-
SOU
2 stops49h 05m
Multiple Airlines
Deal found 7/2£723
Thu 5/320:10
SOU
-
BKK
2 stops33h 55m
Qatar Airways
Wed 18/318:55
BKK
-
SOU
2 stops31h 45m
Qatar Airways
Deal found 7/2£756
Tue 3/312:25
SOU
-
BKK
2 stops24h 00m
Qatar Airways
Wed 29/409:05
BKK
-
SOU
2 stops40h 25m
Qatar Airways
Deal found 7/2£759
Tue 24/308:50
SOU
-
HKT
2 stops29h 55m
Multiple Airlines
Tue 31/311:30
HKT
-
SOU
3 stops31h 25m
Multiple Airlines
Deal found 6/2£773
Mon 14/920:00
SOU
-
HKT
2 stops40h 50m
Qatar Airways
Sat 19/920:30
HKT
-
SOU
2 stops29h 00m
Qatar Airways
Deal found 6/2£787
Mon 23/308:50
SOU
-
HKT
2 stops25h 45m
KLM
Mon 30/314:05
HKT
-
SOU
2 stops24h 30m
KLM
Deal found 8/2£802
Sun 22/209:30
SOU
-
HKT
2 stops26h 25m
Multiple Airlines
Wed 25/217:00
HKT
-
SOU
3 stops31h 30m
Multiple Airlines
Deal found 8/2£823
Thu 7/517:05
SOU
-
HKT
2 stops19h 20m
Multiple Airlines
Thu 14/509:40
HKT
-
SOU
3 stops29h 45m
Multiple Airlines
Deal found 6/2£825
Mon 23/314:35
SOU
-
HKT
3 stops26h 20m
Multiple Airlines
Mon 30/320:30
HKT
-
SOU
2 stops27h 10m
Multiple Airlines
Deal found 8/2£889

Find flight deals from Portsmouth to Thailand

Keep the following information in mind while searching for Portsmouth to Thailand flight deals. Data was last updated 9 February 2026.

Round-trip from

£723

One-way from

£416

Popular in

July

Cheapest in

May

Average price

£608
7/3-14/3
  • 7/3-14/3
  • 4 total stops
  • 98h 35m total
  • Portsmouth to Thailand
Search Deals
25/3
  • 25/3
  • 3 total stops
  • 46h 20m total
  • Portsmouth to Thailand
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 9 February 2026.
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

Thu 5/3

20:10-13:05

2 stops33h 55m

Bangkok Suvarnabhumi

Wed 18/3

18:55-19:40

2 stops31h 45m

£756

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 3/3

12:25-19:25

2 stops24h 00m

Bangkok Suvarnabhumi

Wed 29/4

09:05-19:30

2 stops40h 25m

£759

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 24/3

08:50-21:05

2 stops29h 15m

Bangkok Suvarnabhumi

Tue 31/3

10:55-12:55

3 stops32h 00m

£760

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Mon 23/3

08:50-22:25

2 stops30h 35m

Bangkok Suvarnabhumi

Mon 30/3

05:05-08:35

2 stops33h 30m

£773

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

Tue 24/3

08:50-22:00

2 stops30h 10m

Phuket City

Mon 30/3

00:20-08:35

2 stops38h 15m

£779

SouthamptonPhuket City

SOU - HKT

SOUHKT

Southampton Eastleigh

Mon 23/3

08:50-17:35

2 stops25h 45m

Phuket City

Mon 30/3

14:05-08:35

2 stops24h 30m

£802

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Thu 5/3

20:10-13:05

2 stops33h 55m

Bangkok Suvarnabhumi

Wed 25/3

08:15-19:40

2 stops42h 25m

£805

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 10/3

12:25-19:25

2 stops24h 00m

Bangkok Suvarnabhumi

Wed 29/4

09:05-19:30

2 stops40h 25m

£807

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 24/3

08:50-10:05

1 stop18h 15m

Bangkok Suvarnabhumi

Tue 31/3

09:10-08:35

2 stops29h 25m

£810

SouthamptonBangkok

SOU - BKK

SOUBKK

Southampton Eastleigh

Tue 3/3

12:25-19:25

2 stops24h 00m

Bangkok Suvarnabhumi

Tue 24/3

09:55-15:35

2 stops36h 40m

£811

Flights are sorted by cheapest return flights first.

Deals found on 8/2

Showing 1-10 of 36 results
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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, September is the cheapest month in which you can book a flight from Portsmouth to Thailand (average of £174). Flying from Portsmouth to Thailand in August is currently the most expensive (average of £513). 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 9 February 2026.

It’s optimal to fly from Portsmouth to Thailand in the afternoon. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the evening.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Thailand. Price data was last updated on 31 January 2026.

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

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 9 February 2026.

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 9 February 2026.
Read reviews from past customers who have flown with KLM 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
7.7
Good
1,450 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,450 reviews
KLM
7.7
Good
1,450 reviews
Check prices

Boarding

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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.

  • How long is the flight from Portsmouth to Thailand?

    For as low as £802, Qatar Airways can have you in Thailand from Portsmouth in 25h 45m. Portsmouth and Thailand are separated by a distance of 6195 mi. This flight may include one or multiple stops.

  • 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 (82%), EVA Air (80%) or Air Canada (79%) 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 £448. On average you can expect to pay £2,312. The most popular route, (Southampton Eastleigh - Bangkok Suvarnabhumi), can usually be booked for £757.

  • 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, September is the cheapest month in which you can book a flight from Portsmouth to Thailand (average of £174). Flying from Portsmouth to Thailand in August is currently the most expensive (average of £513). 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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Stansted to Islamabad flights
London City to Hong Kong flights
Heathrow to Gimpo Intl flights
Gatwick to Islamabad flights
London City to Kuala Lumpur Intl flights
Stansted to Kuala Lumpur Intl flights

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 9 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest£112Average£141FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Turkmenistan AirlinesCheapest£265Average£531FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Hahn AirCheapest£270Average£645FlexibilityNo cancel feeOn-timeN/A
Search Hahn Air flights
Scandinavian AirlinesCheapest£279Average£677FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
China AirlinesCheapest£334Average£691FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Air ArabiaCheapest£344Average£604FlexibilityNo cancel feeOn-time79%
Search Air Arabia flights
ITA AirwaysCheapest£361Average£544FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
Royal JordanianCheapest£409Average£679FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
KLMCheapest£421Average£805FlexibilityNo cancel feeOn-time75%
Search KLM flights
CondorCheapest£441Average£577FlexibilityNo cancel feeOn-time76%
Search Condor 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?

Cheapflights helps you find that perfect flight to Thailand from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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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