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Cheap flights from Helena to Bangkok from $1,099

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 4/17. 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
2:25 pm - 9:35 am
HLN
-
BKK
30h 10m
3 stops
United Airlines Logo
3:45 pm - 9:33 pm
BKK
-
HLN
42h 48m
3 stops
$1,099United Airlines
Fri, Apr 17 - Fri, Apr 24
United Airlines Logo
2:25 pm - 9:35 am
HLN
-
BKK
30h 10m
3 stops
United Airlines Logo
7:00 am - 9:33 pm
BKK
-
HLN
27h 33m
2 stops
$1,754United Airlines
Fri, Apr 17 - Fri, Apr 24
United Airlines Logo
6:15 am - 11:55 pm
HLN
-
BKK
28h 40m
2 stops
United Airlines Logo
3:45 pm - 1:39 pm
BKK
-
HLN
34h 54m
3 stops
$5,642United Airlines
Sun, Apr 19 - Tue, Apr 21
United Airlines Logo
6:15 am - 11:55 pm
HLN
-
BKK
28h 40m
2 stops
United Airlines Logo
7:00 am - 9:33 pm
BKK
-
HLN
27h 33m
2 stops
$6,230United Airlines
Fri, Apr 17 - Fri, Apr 24
United Airlines Logo
6:15 am - 11:55 pm
HLN
-
BKK
28h 40m
2 stops
United Airlines Logo
7:00 am - 9:33 pm
BKK
-
HLN
27h 33m
2 stops
$11,061United Airlines
Sun, Apr 19 - Tue, Apr 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
Apr 17
HLN2:25 pmHelena
30h 10m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Apr 24
BKK3:45 pmBangkok Suvarnabhumi
42h 48m
3 stops
HLN9:33 pmHelena
$1,099
United Airlines
Apr 17
HLN2:25 pmHelena
30h 10m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Apr 24
BKK7:00 amBangkok Suvarnabhumi
27h 33m
2 stops
HLN9:33 pmHelena
$1,754
United Airlines
Mar 12
HLN6:15 amHelena
40h 10m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Mar 16
BKK4:55 pmBangkok Suvarnabhumi
33h 43m
3 stops
HLN1:38 pmHelena
$1,842

Korean Air flights from Helena to Bangkok Suvarnabhumi Airport

Our best Korean Air deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
Korean Air
Mar 12
HLN4:36 pmHelena
43h 19m
2 stops
BKK12:55 amBangkok Suvarnabhumi
Mar 16
BKK11:15 pmBangkok Suvarnabhumi
29h 44m
2 stops
HLN3:59 pmHelena
$1,769
Korean Air
Mar 12
HLN4:36 pmHelena
43h 09m
2 stops
BKK12:45 amBangkok Suvarnabhumi
Mar 16
BKK10:25 pmBangkok Suvarnabhumi
30h 34m
2 stops
HLN3:59 pmHelena
$2,401
Korean Air
Mar 12
HLN4:36 pmHelena
43h 09m
2 stops
BKK12:45 amBangkok Suvarnabhumi
Mar 16
BKK10:25 pmBangkok Suvarnabhumi
30h 34m
2 stops
HLN3:59 pmHelena
$2,531

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 March 7, 2026.
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

Cheapest round-trip

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 4/17

2:25 pm-9:35 am

3 stops30h 10m

Bangkok Suvarnabhumi

Fri 4/24

3:45 pm-9:33 pm

3 stops42h 48m

$1,099

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 4/17

2:25 pm-9:35 am

3 stops30h 10m

Bangkok Suvarnabhumi

Fri 4/24

7:00 am-9:33 pm

2 stops27h 33m

$1,754

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 4/19

6:15 am-11:55 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Tue 4/21

3:45 pm-1:39 pm

3 stops34h 54m

$5,642
Quickest round-trip

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 4/17

6:15 am-11:55 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Fri 4/24

7:00 am-9:33 pm

2 stops27h 33m

$6,230

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 4/19

6:15 am-11:55 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Tue 4/21

7:00 am-9:33 pm

2 stops27h 33m

$11,061

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

31h 55m

Direct flights

None
The fastest flight from Helena to Bangkok Suvarnabhumi Airport takes 31h 55m
There are no direct flights from Helena to Bangkok Suvarnabhumi Airport. There are no popular flight routes from Helena to Bangkok Suvarnabhumi Airport.
Search flight deals

  • 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 31h 55m.

  • 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.

  • How do I get Price Alerts for flights from Helena to Bangkok Suvarnabhumi Airport?

    Search flight deals from Helena to Bangkok Suvarnabhumi Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Helena to Bangkok Suvarnabhumi Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Bangkok?

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