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Cheap flights from London Heathrow Airport to Rayong from £399

LHR — UTP
18 Nov — 25 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Rayong

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Rayong

Sat 24/1022:00 -
2 stops36h 50m
Wed 28/1013:00 -
2 stops33h 55m
Deal found 16/10£677
Wed 2/1208:45 -
2 stops49h 05m
Wed 9/1213:00 -
2 stops37h 20m
Deal found 18/10£727
Sat 7/1117:10 -
2 stops40h 40m
Sun 22/1113:00 -
2 stops39h 40m
Deal found 16/10£795
Wed 28/1008:05 -
2 stops25h 45m
Thu 5/1113:00 -
2 stops24h 35m
Deal found 17/10£824
Sun 8/1113:55 -
2 stops19h 55m
Thu 19/1113:00 -
2 stops30h 05m
Deal found 14/10£842
Thu 29/1019:00 -
2 stops38h 50m
Thu 5/1113:00 -
2 stops31h 50m
Deal found 17/10£866
Tue 27/1019:00 -
2 stops38h 50m
Thu 5/1113:00 -
2 stops34h 10m
Deal found 17/10£872
Thu 29/1020:20 -
2 stops37h 30m
Sun 8/1113:00 -
2 stops38h 00m
Deal found 17/10£884
Sun 29/1106:00 -
3 stops27h 50m
Sun 6/1215:20 -
2 stops33h 30m
Deal found 15/10£887

Find flight deals from Heathrow to Rayong

Round-trip from

£699

One-way from

£399

Popular in

December

Cheapest in

September

Average price

£610
17/2-27/2
  • 17/2-27/2
  • 4 total stops
  • 74h 20m total
  • London to Rayong
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7/11-31/12
  • 7/11-31/12
  • 3 total stops
  • 58h 25m total
  • London to Rayong
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£39 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to Rayong that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Sat 7/11

21:10-14:35

3 stops58h 25m

Utapao Rayong Pattaya

Wed 31/12

00:00-18:00

Nonstop0h 00m

£399
Fastest return journey

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Fri 6/11

13:55-16:50

2 stops19h 55m

Utapao Rayong Pattaya

Wed 31/12

00:00-18:00

Nonstop0h 00m

£752

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Wed 17/2

22:00-16:50

2 stops35h 50m

Utapao Rayong Pattaya

Wed 3/3

13:00-13:50

2 stops31h 50m

£932

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Mon 15/2

21:25-16:50

2 stops36h 25m

Utapao Rayong Pattaya

Wed 24/2

13:00-05:35

2 stops47h 35m

£977

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Wed 17/2

12:55-16:50

3 stops44h 55m

Utapao Rayong Pattaya

Wed 3/3

13:00-05:35

2 stops23h 35m

£1,385

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Sun 8/11

19:20-16:50

3 stops38h 30m

Utapao Rayong Pattaya

Thu 19/11

13:00-12:05

3 stops30h 05m

£1,406

LondonRayong

LHR London Heathrow - UTP Utapao Rayong Pattaya

LHRUTP

London Heathrow

Fri 12/2

10:25-16:50

2 stops23h 25m

Utapao Rayong Pattaya

Sat 27/2

13:00-11:20

3 stops29h 20m

£1,601

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Sorted by cheapest first

Best time to book a flight from Heathrow to Rayong

Have a flexible travel schedule? Discover the best time to fly to Rayong from Heathrow with our price prediction graph.
Estimated return price

Reviews of airlines servicing Rayong

Check out reviews from past customers who have flown with Etihad Airways from London Heathrow Airport to Rayong to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Etihad Airways
7.3
Good
1,544 reviews
Check prices

Boarding

7.6

Overall

7.3

Crew

7.8

Entertainment

7.2

Comfort

7.3

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Humera,Oct 2026

KHI - AUH

Not sure why, but somehow, my daughter’s ticket was bought such that it did not allow any checked baggage’s. This is quite ironic because this is an international flight is not going from Sister city to another Sister city it is going from one continent to a very different continent. How is it assumed that a person will not have any luggage.? I never even knew that international flights could have such a policy where there are tickets that would not have checked luggage included seriously?! At the counter when we learned this the amount of money they were asking for to check the bags was $260 each bag. For two bags that’s slightly more than what I paid for the return ticket. They could have charged $100 or $125 for each bag just like when the bag is over weight. This is extremely ridiculous., very disappointed, especially when the crew at the airport was not even cooperative in coming up with some solution. My daughter had told myself flight and is now flying back via Qatar Airways. Extremely disappointed with Etihad airways.
Etihad Airways
7.3
Good
1,544 reviews
Etihad Airways
7.3
Good
1,544 reviews
Check prices

Boarding

7.6

Overall

7.3

Crew

7.8

Entertainment

7.2

Comfort

7.3

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Humera,Oct 2026

KHI - AUH

Not sure why, but somehow, my daughter’s ticket was bought such that it did not allow any checked baggage’s. This is quite ironic because this is an international flight is not going from Sister city to another Sister city it is going from one continent to a very different continent. How is it assumed that a person will not have any luggage.? I never even knew that international flights could have such a policy where there are tickets that would not have checked luggage included seriously?! At the counter when we learned this the amount of money they were asking for to check the bags was $260 each bag. For two bags that’s slightly more than what I paid for the return ticket. They could have charged $100 or $125 for each bag just like when the bag is over weight. This is extremely ridiculous., very disappointed, especially when the crew at the airport was not even cooperative in coming up with some solution. My daughter had told myself flight and is now flying back via Qatar Airways. Extremely disappointed with Etihad airways.

Related info for your journey

  • What airport do you fly into for flights to Rayong from London Heathrow?

    Located just 17.0 mi from the city center, Utapao Rayong Pattaya is the airport most travelers will use when flying to Rayong from London Heathrow. Booking flights from London Heathrow to Utapao Rayong Pattaya (UTP) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

  • How long is the flight from London Heathrow Airport to Rayong?

    Emirates can get you from London Heathrow Airport to Rayong in just under 35h 50m. Your travel time can differ by up to . Airlines will cover a distance of 6012 mi.

  • What is the cheapest airline to fly from London Heathrow Airport to Rayong round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Rayong round-trip from £694.

  • Can I find deals for flights from Heathrow to Rayong that include hotel bookings?

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

  • How can I find direct flights from Heathrow to Rayong?

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

  • Can I find deals for business class flights from Heathrow to Rayong?

    Yes. Cheapflights offers flight deals from Heathrow to Rayong by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Heathrow to Rayong

AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£694Average£813FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights

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