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Cheap flights from Helena to Bangkok from $843

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Bangkok departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
5:59 pm - 12:35 pmHLN-BKK
28h 36m2 stops
Multiple Airlines Logo
1:45 pm - 3:43 pmBKK-HLN
39h 58m2 stops
$843Multiple Airlines
Find Deal
Thu, Feb 5 - Thu, Feb 19
United Airlines Logo
2:27 pm - 11:25 amHLN-BKK
30h 58m3 stops
United Airlines Logo
4:55 pm - 8:59 pmBKK-HLN
42h 04m3 stops
$950United Airlines
Find Deal
Thu, Feb 5 - Tue, Feb 17
Delta Logo
5:35 am - 11:20 pmHLN-BKK
27h 45m2 stops
Delta Logo
9:30 pm - 10:38 pmBKK-HLN
39h 08m2 stops
$956Delta
Find Deal
Thu, Feb 5 - Mon, Feb 16
United Airlines Logo
2:27 pm - 11:25 amHLN-BKK
30h 58m3 stops
United Airlines Logo
4:55 pm - 8:59 pmBKK-HLN
42h 04m3 stops
$970United Airlines
Find Deal
Thu, Feb 5 - Wed, Feb 18
Delta Logo
5:35 am - 12:45 amHLN-BKK
29h 10m2 stops
Delta Logo
9:40 am - 10:38 pmBKK-HLN
26h 58m2 stops
$996Delta
Find Deal
Thu, Feb 5 - Sun, Feb 22
United Airlines Logo
2:27 pm - 11:25 amHLN-BKK
30h 58m3 stops
United Airlines Logo
4:55 pm - 1:27 pmBKK-HLN
34h 32m3 stops
$1,053United Airlines
Find Deal
Thu, Feb 5 - Thu, Feb 19
Multiple Airlines Logo
5:35 am - 12:45 amHLN-BKK
29h 10m2 stops
Multiple Airlines Logo
2:05 am - 3:43 pmBKK-HLN
27h 38m2 stops
$1,131Multiple Airlines
Find Deal
Thu, Feb 5 - Wed, Feb 18
EVA Air Logo
5:59 pm - 11:10 amHLN-BKK
27h 11m2 stops
EVA Air Logo
2:15 am - 3:43 pmBKK-HLN
51h 28m2 stops
$6,381EVA Air
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Thu, Feb 5 - Wed, Feb 18
Alaska Airlines Logo
5:59 pm - 11:35 pmHLN-BKK
39h 36m2 stops
Alaska Airlines Logo
8:05 am - 3:43 pmBKK-HLN
21h 38m2 stops
$11,834Alaska Airlines
Find Deal
Thu, Feb 5 - Sun, Feb 22
Alaska Airlines Logo
5:59 pm - 11:35 pmHLN-BKK
39h 36m2 stops
Alaska Airlines Logo
8:05 am - 3:43 pmBKK-HLN
21h 38m2 stops
$11,875Alaska Airlines
Find Deal
Thu, Feb 5 - Sat, Feb 21

United Airlines flights from Helena to Bangkok Suvarnabhumi Airport

Our best United Airlines deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
United Airlines
Feb 5
HLN2:27 pmHelena
30h 58m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Feb 17
BKK4:55 pmBangkok Suvarnabhumi
42h 04m
3 stops
HLN8:59 pmHelena
$950
Find similar
United Airlines
Feb 5
HLN2:27 pmHelena
30h 58m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Feb 18
BKK4:55 pmBangkok Suvarnabhumi
42h 04m
3 stops
HLN8:59 pmHelena
$970
Find similar
United Airlines
Feb 5
HLN2:27 pmHelena
30h 58m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Feb 19
BKK4:55 pmBangkok Suvarnabhumi
34h 32m
3 stops
HLN1:27 pmHelena
$1,053
Find similar

Delta flights from Helena to Bangkok Suvarnabhumi Airport

Our best Delta deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
Delta
Feb 5
HLN5:35 amHelena
27h 45m
2 stops
BKK11:20 pmBangkok Suvarnabhumi
Feb 16
BKK9:30 pmBangkok Suvarnabhumi
39h 08m
2 stops
HLN10:38 pmHelena
$956
Find similar
Delta
Feb 5
HLN5:35 amHelena
29h 10m
2 stops
BKK12:45 amBangkok Suvarnabhumi
Feb 22
BKK9:40 amBangkok Suvarnabhumi
26h 58m
2 stops
HLN10:38 pmHelena
$996
Find similar
Delta
Feb 5
HLN5:35 amHelena
27h 45m
2 stops
BKK11:20 pmBangkok Suvarnabhumi
Feb 21
BKK12:55 amBangkok Suvarnabhumi
35h 43m
2 stops
HLN10:38 pmHelena
$1,212
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 October 13, 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

Thu 2/5

5:59 pm-12:35 pm

2 stops28h 36m

Bangkok Suvarnabhumi

Thu 2/19

1:45 pm-3:43 pm

2 stops39h 58m

$843

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

2:27 pm-11:25 am

3 stops30h 58m

Bangkok Suvarnabhumi

Tue 2/17

4:55 pm-8:59 pm

3 stops42h 04m

$950

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

5:35 am-11:20 pm

2 stops27h 45m

Bangkok Suvarnabhumi

Mon 2/16

9:30 pm-10:38 pm

2 stops39h 08m

$956

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

2:27 pm-11:25 am

3 stops30h 58m

Bangkok Suvarnabhumi

Wed 2/18

4:55 pm-8:59 pm

3 stops42h 04m

$970

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

5:35 am-12:45 am

2 stops29h 10m

Bangkok Suvarnabhumi

Sun 2/22

9:40 am-10:38 pm

2 stops26h 58m

$996

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

2:27 pm-11:25 am

3 stops30h 58m

Bangkok Suvarnabhumi

Thu 2/19

4:55 pm-1:27 pm

3 stops34h 32m

$1,053

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

5:35 am-12:45 am

2 stops29h 10m

Bangkok Suvarnabhumi

Wed 2/18

2:05 am-3:43 pm

2 stops27h 38m

$1,131

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

5:59 pm-11:10 am

2 stops27h 11m

Bangkok Suvarnabhumi

Wed 2/18

2:15 am-3:43 pm

2 stops51h 28m

$6,381

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

5:59 pm-11:35 pm

2 stops39h 36m

Bangkok Suvarnabhumi

Sun 2/22

8:05 am-3:43 pm

2 stops21h 38m

$11,834

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 2/5

5:59 pm-11:35 pm

2 stops39h 36m

Bangkok Suvarnabhumi

Sat 2/21

8:05 am-3:43 pm

2 stops21h 38m

$11,875

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 airlines fly to Bangkok Suvarnabhumi Airport?

United Airlines, EVA Air and Korean Air are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Helena according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 4 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

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

Direct flights

None
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 27h 11m.

  • 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
Kanchanaburi
Chonburi
Ayutthaya
Cha-am
Ko Lan
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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