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Cheap flights from Helena to Bangkok from $929

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 11/24. 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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Find the cheapest flights from Helena to Bangkok (HLN-BKK)

Cheap round-trip flights

Logo
6:59 pm - 11:15 amHLN-BKK
26h 16m2 stops
Logo
11:55 pm - 3:43 pmBKK-HLN
53h 48m2 stops
$929
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Mon, Nov 24 - Mon, Dec 1
China Airlines Logo
6:59 pm - 4:45 pmHLN-BKK
31h 46m2 stops
China Airlines Logo
2:35 am - 3:43 pmBKK-HLN
51h 08m2 stops
$1,007China Airlines
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Mon, Nov 24 - Sun, Nov 30
United Airlines Logo
2:22 pm - 11:25 amHLN-BKK
55h 03m3 stops
United Airlines Logo
4:55 pm - 9:22 pmBKK-HLN
42h 27m3 stops
$1,149United Airlines
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Mon, Nov 24 - Mon, Dec 1
Delta Logo
1:00 pm - 9:45 pmHLN-BKK
43h 45m2 stops
Delta Logo
9:50 am - 10:16 pmBKK-HLN
25h 26m2 stops
$1,200Delta
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Sat, Oct 11 - Wed, Oct 15
United Airlines Logo
6:40 am - 12:05 amHLN-BKK
27h 25m2 stops
United Airlines Logo
4:55 pm - 1:47 pmBKK-HLN
34h 52m3 stops
$1,257United Airlines
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Mon, Nov 24 - Mon, Dec 1

United Airlines flights from Helena to Bangkok Suvarnabhumi Airport

Our best United Airlines deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
United Airlines
Nov 24
HLN2:22 pmHelena
55h 03m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Dec 1
BKK4:55 pmBangkok Suvarnabhumi
42h 27m
3 stops
HLN9:22 pmHelena
$1,149
Find similar
United Airlines
Nov 24
HLN6:40 amHelena
27h 25m
2 stops
BKK12:05 amBangkok Suvarnabhumi
Dec 1
BKK4:55 pmBangkok Suvarnabhumi
34h 52m
3 stops
HLN1:47 pmHelena
$1,257
Find similar
United Airlines
Aug 16
HLN5:39 pmHelena
41h 16m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
Aug 23
BKK7:00 amBangkok Suvarnabhumi
22h 04m
2 stops
HLN4:04 pmHelena
$1,470
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 August 11, 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

Mon 11/24

6:59 pm-11:15 am

2 stops26h 16m

Bangkok Suvarnabhumi

Mon 12/1

11:55 pm-3:43 pm

2 stops53h 48m

$929

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Mon 11/24

6:59 pm-4:45 pm

2 stops31h 46m

Bangkok Suvarnabhumi

Sun 11/30

2:35 am-3:43 pm

2 stops51h 08m

$1,007

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Mon 11/24

2:22 pm-11:25 am

3 stops55h 03m

Bangkok Suvarnabhumi

Mon 12/1

4:55 pm-9:22 pm

3 stops42h 27m

$1,149

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sat 10/11

1:00 pm-9:45 pm

2 stops43h 45m

Bangkok Suvarnabhumi

Wed 10/15

9:50 am-10:16 pm

2 stops25h 26m

$1,200

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Mon 11/24

6:40 am-12:05 am

2 stops27h 25m

Bangkok Suvarnabhumi

Mon 12/1

4:55 pm-1:47 pm

3 stops34h 52m

$1,257

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?

EVA Air, United Airlines and Korean Air are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Helena according to our data. EVA Air is the first choice among our users, with 31% 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

Best Price Found

$929

Fastest flight time

26h 16m

Direct flights

None
The best flight deal from Helena to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $929
The fastest flight from Helena to Bangkok Suvarnabhumi Airport takes 26h 16m
There are no direct flights from Helena to Bangkok Suvarnabhumi Airport. Popular non-direct route for this connection is Helena Airport - 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 26h 16m.

  • 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
Ayutthaya
Chonburi
Cha-am
Ko Lan
Sattahip
Pak Chong
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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