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Cheap flights from Helena to Bangkok from $436

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Bangkok departing on 1/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Helena to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:27 pm - 11:25 amHLN-BKK
30h 58m3 stops
United Airlines Logo
4:55 pm - 1:41 pmBKK-HLN
34h 46m3 stops
$931United Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28
United Airlines Logo
2:27 pm - 12:20 amHLN-BKK
43h 53m2 stops
United Airlines Logo
4:55 pm - 1:41 pmBKK-HLN
34h 46m3 stops
$987United Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28
United Airlines Logo
6:15 am - 12:20 amHLN-BKK
28h 05m2 stops
United Airlines Logo
4:55 pm - 9:26 pmBKK-HLN
42h 31m3 stops
$1,058United Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28
Korean Air Logo
6:48 pm - 11:20 pmHLN-BKK
38h 32m2 stops
Korean Air Logo
9:30 pm - 6:11 pmBKK-HLN
34h 41m2 stops
$1,119Korean Air
Find Deal
Sun, Jan 25 - Wed, Jan 28
United Airlines Logo
2:26 pm - 12:20 amHLN-BKK
43h 54m2 stops
United Airlines Logo
7:10 am - 9:26 pmBKK-HLN
28h 16m2 stops
$1,827United Airlines
Find Deal
Fri, Jan 2 - Fri, Jan 30
United Airlines Logo
2:26 pm - 11:25 amHLN-BKK
30h 59m3 stops
United Airlines Logo
4:55 pm - 1:41 pmBKK-HLN
34h 46m3 stops
$1,890United Airlines
Find Deal
Fri, Jan 2 - Fri, Jan 30
United Airlines Logo
2:26 pm - 11:25 amHLN-BKK
30h 59m3 stops
United Airlines Logo
7:10 am - 9:26 pmBKK-HLN
28h 16m2 stops
$1,932United Airlines
Find Deal
Fri, Jan 2 - Fri, Jan 30
Korean Air Logo
6:48 pm - 11:20 pmHLN-BKK
38h 32m2 stops
Korean Air Logo
2:05 am - 6:11 pmBKK-HLN
30h 06m2 stops
$15,112Korean Air
Find Deal
Sun, Jan 25 - Tue, Jan 27

United Airlines flights from Helena to Bangkok Suvarnabhumi Airport

Our best United Airlines deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
United Airlines
Jan 25
HLN2:27 pmHelena
30h 58m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Jan 28
BKK4:55 pmBangkok Suvarnabhumi
34h 46m
3 stops
HLN1:41 pmHelena
$931
Find similar
United Airlines
Jan 25
HLN2:27 pmHelena
43h 53m
2 stops
BKK12:20 amBangkok Suvarnabhumi
Jan 28
BKK4:55 pmBangkok Suvarnabhumi
34h 46m
3 stops
HLN1:41 pmHelena
$987
Find similar
United Airlines
Jan 25
HLN6:15 amHelena
28h 05m
2 stops
BKK12:20 amBangkok Suvarnabhumi
Jan 28
BKK4:55 pmBangkok Suvarnabhumi
42h 31m
3 stops
HLN9:26 pmHelena
$1,058
Find similar

Korean Air flights from Helena to Bangkok Suvarnabhumi Airport

Our best Korean Air deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
Korean Air
Jan 25
HLN6:48 pmHelena
38h 32m
2 stops
BKK11:20 pmBangkok Suvarnabhumi
Jan 28
BKK9:30 pmBangkok Suvarnabhumi
34h 41m
2 stops
HLN6:11 pmHelena
$1,119
Find similar
Korean Air
Jan 25
HLN6:48 pmHelena
38h 32m
2 stops
BKK11:20 pmBangkok Suvarnabhumi
Jan 27
BKK2:05 amBangkok Suvarnabhumi
30h 06m
2 stops
HLN6:11 pmHelena
$15,112
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Bangkok Suvarnabhumi Airport 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, momondo users made 832,500 searches. Data last updated December 1, 2025.
Use the filters below to find and compare flights from Helena to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 1/25

2:27 pm-11:25 am

3 stops30h 58m

Bangkok Suvarnabhumi

Wed 1/28

4:55 pm-1:41 pm

3 stops34h 46m

$931

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 1/25

2:27 pm-12:20 am

2 stops43h 53m

Bangkok Suvarnabhumi

Wed 1/28

4:55 pm-1:41 pm

3 stops34h 46m

$987

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 1/25

6:15 am-12:20 am

2 stops28h 05m

Bangkok Suvarnabhumi

Wed 1/28

4:55 pm-9:26 pm

3 stops42h 31m

$1,058

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 1/25

6:48 pm-11:20 pm

2 stops38h 32m

Bangkok Suvarnabhumi

Wed 1/28

9:30 pm-6:11 pm

2 stops34h 41m

$1,119

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 1/2

2:26 pm-12:20 am

2 stops43h 54m

Bangkok Suvarnabhumi

Fri 1/30

7:10 am-9:26 pm

2 stops28h 16m

$1,827

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 1/2

2:26 pm-11:25 am

3 stops30h 59m

Bangkok Suvarnabhumi

Fri 1/30

4:55 pm-1:41 pm

3 stops34h 46m

$1,890

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 1/2

2:26 pm-11:25 am

3 stops30h 59m

Bangkok Suvarnabhumi

Fri 1/30

7:10 am-9:26 pm

2 stops28h 16m

$1,932

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 1/25

6:48 pm-11:20 pm

2 stops38h 32m

Bangkok Suvarnabhumi

Tue 1/27

2:05 am-6:11 pm

2 stops30h 06m

$15,112

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Mon 1/26

6:48 pm-11:25 am

3 stops50h 37m

$436

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Mon 1/26

5:30 am-12:55 am

2 stops29h 25m

$474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Bangkok from

How to get the cheapest flight ticket from Helena to Bangkok Suvarnabhumi Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Helena to Bangkok Suvarnabhumi?

Delta and United Airlines are the most popular carriers operating from Helena to Bangkok Suvarnabhumi

When to book flights from Helena to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Helena to Bangkok Suvarnabhumi Airport (HLN to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Bangkok Suvarnabhumi Airport

Fastest flight time

30h 58m

Direct flights

None
The fastest flight from Helena to Bangkok Suvarnabhumi Airport takes 30h 58m
There are no direct flights from Helena to Bangkok Suvarnabhumi Airport. There are no popular flight routes from Helena to Bangkok Suvarnabhumi Airport.
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  • How far is Helena to Bangkok Suvarnabhumi by plane?

    A flight from Helena to Bangkok Suvarnabhumi will travel around 7796.0 mi. By plane, this route typically takes 28h 05m.

  • When did momondo last update prices for flights from Helena Airport to Bangkok Suvarnabhumi Airport?

    Prices for flights from Helena Airport to Bangkok Suvarnabhumi Airport were last updated today.

  • How old do you have to be to fly from Helena Airport to Bangkok Suvarnabhumi Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helena Airport to Bangkok Suvarnabhumi Airport.

  • What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

    The travel and health documents required for your trip to Bangkok Suvarnabhumi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bangkok Suvarnabhumi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Bangkok?

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

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Bangkok?

Finding the right flight to Bangkok from Helena is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bangkok quick and easy, saving you time and money.

Can I find flights from Helena to Bangkok with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Bangkok from Helena with this policy.

How can momondo help me find flights from Helena to Bangkok?

Once you have performed a search for Helena to Bangkok flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Helena to Bangkok right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Helena to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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