HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Suvarnabhumi

Cheap flights from Otopeni Intl (OTP) to Suvarnabhumi (BKK)

OTP — BKK
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Otopeni Intl to Suvarnabhumi with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Bucharest Otopeni Intl to Bangkok Suvarnabhumi are usually found in September or May, booked 55 days in advance, depart on a Thursday or Monday and return on a Monday

Cheap flight deals from Otopeni Intl to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Otopeni Intl (OTP) to Suvarnabhumi (BKK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Popular in

July

Cheapest in

September

Average price

$857
Highest demand for flights based on searches. 5% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Best time to book a flight from Otopeni Intl to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Otopeni Intl with our price prediction graph.
Estimated round-trip 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 Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport

How far ahead should I book a flight from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport?

Use this chart to determine the optimal time to book a round-trip flight from Otopeni Intl to Suvarnabhumi. Price data was last updated on August 29, 2025.

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport?

Currently, September is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport (average of $908). Flying from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,518). 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 OTP to BKK?

Find hourly flight availability from Otopeni Intl to Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 14% on airfare.

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated September 11, 2025.
See what other customers who have flown with KLM, Austrian Airlines, and Qatar Airways from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,385 reviews

Crew

8.4

Overall

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Overall

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Austrian Airlines
7.6
Good
850 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Overall

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Qatar Airways
7.4
Good
3,624 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Overall

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
Turkish Airlines
7.3
Good
3,968 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Overall

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

Find useful and relevant information for your journey from Otopeni Intl to Suvarnabhumi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport round-trip?

    Austrian Airlines, at $112, was found to be the cheapest airline from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport.Alternate airlines to your destination round-trip include Turkish Airlines and Qatar Airways. You may be able to fly from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport for 88% less than the average price by searching for these airlines.

  • Can I find deals for flights from Otopeni Intl to Suvarnabhumi that include hotel bookings?

    Yes. In addition to deals on Otopeni Intl to Suvarnabhumi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Otopeni Intl to Suvarnabhumi?

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

  • Can I find deals for business class flights from Otopeni Intl to Suvarnabhumi?

    Yes. Cheapflights offers flight deals from Otopeni Intl to Suvarnabhumi 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 Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport?

    Currently, September is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport (average of $908). Flying from Bucharest Otopeni Intl Airport to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $1,518). 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

Traveling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Sattahip
Kanchanaburi
Chonburi
Cha-am
Ko Samet
Pak Chong
Phetchaburi
Ko Lan

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.

Top 4 airlines flying from Otopeni Intl to Suvarnabhumi

Discover the top 4 airlines that operate flights from Otopeni Intl to Suvarnabhumi. 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$112Average$721FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$836Average$1,028FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$854Average$953FlexibilityNo cancel feeOn-time68%
KLMCheapest$875Average$1,187FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.