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$1,440+ Cheap flights from Helena (HLN) to Thailand

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — BKK
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheap flight deals from Helena to Thailand

Cheapest flights from Helena to Thailand
Explore the most affordable flight options available from Helena to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 17, 2026.

This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:15 am
HLN
-
BKK
3 stops40h 10m
United Airlines
Mon 3/164:55 pm
BKK
-
HLN
3 stops33h 43m
United Airlines
Deal found 2/16$1,440
This Korean Air deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:36 pm
HLN
-
BKK
2 stops43h 09m
Korean Air
Sun 3/1512:55 am
BKK
-
HLN
2 stops52h 04m
Korean Air
Deal found 2/15$1,599

Find flight deals from Helena to Thailand

Keep the following information in mind while searching for Helena to Thailand flight deals. Data was last updated February 17, 2026.

Round-trip from

$1,236
(Ovago)
From Helena to Thailand
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena 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 2,558,603 searches. Data last updated February 17, 2026.
Use the filters below to find and compare flights from Helena to Thailand that are best for you.

Fly from

Helena

Fly to

Thailand

Route

Depart

Return

Price

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 3/12

2:30 pm-11:25 am

3 stops31h 55m

Bangkok Suvarnabhumi

Mon 3/16

4:55 pm-1:38 pm

3 stops33h 43m

$1,440

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 3/12

4:36 pm-12:55 am

2 stops43h 19m

Bangkok Suvarnabhumi

Sun 3/15

12:55 am-3:59 pm

2 stops52h 04m

$1,599

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Best time to book a flight from Helena to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Helena 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 Helena to Thailand
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly from for flights from Helena to Thailand?

    Helena (HLN), located 2.7 mi from the city center, is the airport you fly out of when you book flights from Helena to Thailand.

  • How long is the flight from Helena to Thailand?

    United Airlines can get you from Helena to Thailand in just under 31h 55m. Your travel time can differ by up to . There are 7797 mi between Helena and Thailand.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena 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.

See more FAQs

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