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Cheap flights from Helena to Bangkok from $535

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 8/27. 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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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.
Multiple Airlines Logo
5:11 pm - 4:20 pm
HLN
-
BKK
34h 09m
2 stops
Multiple Airlines Logo
10:50 am - 4:41 pm
BKK
-
HLN
42h 51m
2 stops
$1,149Multiple Airlines
Thu, Aug 27 - Sat, Sep 26
STARLUX Airlines Logo
5:11 pm - 4:40 pm
HLN
-
BKK
34h 29m
2 stops
STARLUX Airlines Logo
5:50 pm - 4:41 pm
BKK
-
HLN
59h 51m
2 stops
$1,186STARLUX Airlines
Fri, Aug 28 - Sat, Sep 26
Multiple Airlines Logo
5:11 pm - 4:40 pm
HLN
-
BKK
34h 29m
2 stops
Multiple Airlines Logo
1:10 pm - 4:41 pm
BKK
-
HLN
40h 31m
2 stops
$1,194Multiple Airlines
Fri, Aug 28 - Sat, Sep 26
Multiple Airlines Logo
5:11 pm - 12:00 pm
HLN
-
BKK
29h 49m
2 stops
Multiple Airlines Logo
1:10 pm - 4:41 pm
BKK
-
HLN
40h 31m
2 stops
$1,222Multiple Airlines
Thu, Aug 27 - Fri, Sep 25
Multiple Airlines Logo
5:11 pm - 12:00 pm
HLN
-
BKK
29h 49m
2 stops
Multiple Airlines Logo
1:10 pm - 4:41 pm
BKK
-
HLN
40h 31m
2 stops
$1,223Multiple Airlines
Thu, Aug 27 - Fri, Sep 25
Delta Logo
5:40 am - 9:45 pm
HLN
-
BKK
27h 05m
2 stops
Delta Logo
9:40 pm - 10:24 pm
BKK
-
HLN
37h 44m
2 stops
$1,232Delta
Wed, Aug 26 - Mon, Sep 28
Delta Logo
12:55 pm - 1:05 am
HLN
-
BKK
47h 10m
2 stops
Delta Logo
9:40 pm - 10:24 pm
BKK
-
HLN
37h 44m
2 stops
$1,238Delta
Sun, Aug 30 - Mon, Sep 28
United Airlines Logo
6:15 am - 9:35 am
HLN
-
BKK
38h 20m
3 stops
United Airlines Logo
7:00 am - 9:03 pm
BKK
-
HLN
27h 03m
2 stops
$1,244United Airlines
Tue, Aug 25 - Tue, Sep 29
United Airlines Logo
6:15 am - 9:35 am
HLN
-
BKK
38h 20m
3 stops
United Airlines Logo
9:35 am - 9:03 pm
BKK
-
HLN
48h 28m
2 stops
$1,252United Airlines
Tue, Aug 25 - Mon, Sep 28
United Airlines Logo
6:15 am - 11:55 pm
HLN
-
BKK
28h 40m
2 stops
United Airlines Logo
3:45 pm - 1:44 pm
BKK
-
HLN
34h 59m
3 stops
$1,255United Airlines
Tue, Aug 25 - Wed, Sep 23

Delta flights from Helena to Bangkok Suvarnabhumi Airport

Our best Delta deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
Delta
Aug 26
HLN5:40 amHelena
28h 55m
2 stops
BKK11:35 pmBangkok Suvarnabhumi
Sep 24
BKK9:50 amBangkok Suvarnabhumi
25h 34m
2 stops
HLN10:24 pmHelena
$1,232
Delta
Aug 30
HLN12:55 pmHelena
47h 10m
2 stops
BKK1:05 amBangkok Suvarnabhumi
Sep 23
BKK9:50 amBangkok Suvarnabhumi
25h 34m
2 stops
HLN10:24 pmHelena
$1,238
Delta
Aug 26
HLN5:40 amHelena
30h 25m
2 stops
BKK1:05 amBangkok Suvarnabhumi
Sep 27
BKK11:30 pmBangkok Suvarnabhumi
35h 54m
2 stops
HLN10:24 pmHelena
$1,262

United Airlines flights from Helena to Bangkok Suvarnabhumi Airport

Our best United Airlines deals on Helena to Bangkok Suvarnabhumi Airport flight tickets
United Airlines
Aug 25
HLN6:15 amHelena
38h 20m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Sep 29
BKK7:00 amBangkok Suvarnabhumi
27h 03m
2 stops
HLN9:03 pmHelena
$1,244
United Airlines
Aug 25
HLN6:15 amHelena
38h 20m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Sep 28
BKK9:35 amBangkok Suvarnabhumi
48h 28m
2 stops
HLN9:03 pmHelena
$1,252
United Airlines
Aug 25
HLN6:15 amHelena
28h 40m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
Sep 23
BKK3:45 pmBangkok Suvarnabhumi
34h 59m
3 stops
HLN1:44 pmHelena
$1,255

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 May 28, 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

Thu 8/27

5:11 pm-4:20 pm

2 stops34h 09m

Bangkok Suvarnabhumi

Sat 9/26

10:50 am-4:41 pm

2 stops42h 51m

$1,149

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 8/28

5:11 pm-4:40 pm

2 stops34h 29m

Bangkok Suvarnabhumi

Sat 9/26

5:50 pm-4:41 pm

2 stops59h 51m

$1,186

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Fri 8/28

5:11 pm-4:40 pm

2 stops34h 29m

Bangkok Suvarnabhumi

Sat 9/26

1:10 pm-4:41 pm

2 stops40h 31m

$1,194

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 8/27

5:11 pm-12:00 pm

2 stops29h 49m

Bangkok Suvarnabhumi

Fri 9/25

1:10 pm-4:41 pm

2 stops40h 31m

$1,222

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Thu 8/27

5:11 pm-12:00 pm

2 stops29h 49m

Bangkok Suvarnabhumi

Fri 9/25

1:10 pm-4:41 pm

2 stops40h 31m

$1,223

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Wed 8/26

5:40 am-9:45 pm

2 stops27h 05m

Bangkok Suvarnabhumi

Mon 9/28

9:40 pm-10:24 pm

2 stops37h 44m

$1,232

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Sun 8/30

12:55 pm-1:05 am

2 stops47h 10m

Bangkok Suvarnabhumi

Mon 9/28

9:40 pm-10:24 pm

2 stops37h 44m

$1,238

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Tue 8/25

6:15 am-9:35 am

3 stops38h 20m

Bangkok Suvarnabhumi

Tue 9/29

7:00 am-9:03 pm

2 stops27h 03m

$1,244

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Tue 8/25

6:15 am-9:35 am

3 stops38h 20m

Bangkok Suvarnabhumi

Mon 9/28

9:35 am-9:03 pm

2 stops48h 28m

$1,252
Quickest round-trip

HelenaBangkok

HLN - BKK

HLNBKK

Helena

Tue 8/25

6:15 am-11:55 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Wed 9/23

3:45 pm-1:44 pm

3 stops34h 59m

$1,255

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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, United Airlines, and Qatar Airways 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

29h 51m

Direct flights

None
The fastest flight from Helena to Bangkok Suvarnabhumi Airport takes 29h 51m
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

Frequently asked questions about flying from Helena to Bangkok Suvarnabhumi Airport

  • 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 29h 51m.

  • 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
Cha-am
Chonburi
Ayutthaya
Ko Lan
Pak Chong
Phetchaburi
Sattahip

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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