When did momondo last update prices for flights from Helena Airport to Thailand?

Prices for flights from Helena Airport to Thailand refresh daily.

How old do you have to be to fly from Helena Airport to Thailand?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Thailand.

What documentation or ID do you need to fly to Thailand?

The travel and health documents you'll need for your trip to Thailand may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Thailand. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,118 Cheap Flights from Helena to Thailand in 2026/27

Find the cheapest flights from Helena to Thailand

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:50 pm - 11:05 pmHLN Helena-BKK Bangkok Suvarnabhumi

44h 15m2 stops Salt Lake City Incheon Intl

9:40 pm - 10:41 pmBKK Bangkok Suvarnabhumi-HLN Helena

38h 01m2 stops Incheon Intl Salt Lake City

$1,118Delta

Fri, Mar 12 - Mon, Mar 22

7:00 am - 9:35 amHLN Helena-BKK Bangkok Suvarnabhumi

37h 35m3 stops Denver Intl Los Angeles Hong Kong Intl

3:45 pm - 8:59 pmBKK Bangkok Suvarnabhumi-HLN Helena

42h 14m3 stops Hong Kong Intl Los Angeles Denver Intl

$1,131United Airlines

Sat, Apr 3 - Tue, Apr 6

6:28 am - 11:30 amHLN Helena-BKK Bangkok Suvarnabhumi

39h 02m3 stops Denver Intl Los Angeles Hong Kong Intl

4:55 pm - 9:46 pmBKK Bangkok Suvarnabhumi-HLN Helena

42h 51m3 stops Hong Kong Intl Los Angeles Denver Intl

$1,150United Airlines

Thu, Nov 26 - Thu, Dec 3

12:50 pm - 1:25 pmHLN Helena-BKK Bangkok Suvarnabhumi

58h 35m2 stops Salt Lake City Incheon Intl

9:50 am - 10:41 pmBKK Bangkok Suvarnabhumi-HLN Helena

25h 51m2 stops Incheon Intl Salt Lake City

$1,158Delta

Fri, Mar 12 - Sun, Mar 21

4:08 pm - 12:00 pmHLN Helena-BKK Bangkok Suvarnabhumi

30h 52m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

1:10 pm - 3:31 pmBKK Bangkok Suvarnabhumi-HLN Helena

39h 21m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,173Multiple Airlines

Thu, Apr 1 - Tue, Apr 13

5:45 am - 9:30 pmHLN Helena-BKK Bangkok Suvarnabhumi

25h 45m2 stops Salt Lake City Incheon Intl

11:15 pm - 10:41 pmBKK Bangkok Suvarnabhumi-HLN Helena

36h 26m2 stops Incheon Intl Salt Lake City

$1,182Delta

Thu, Mar 11 - Mon, Mar 22

7:00 am - 11:30 amHLN Helena-BKK Bangkok Suvarnabhumi

62h 30m3 stops Denver Intl Los Angeles Hong Kong Intl

4:55 pm - 1:27 pmBKK Bangkok Suvarnabhumi-HLN Helena

33h 32m3 stops Hong Kong Intl Los Angeles Denver Intl

$1,191United Airlines

Fri, Mar 12 - Mon, Mar 22

6:28 am - 11:30 amHLN Helena-BKK Bangkok Suvarnabhumi

39h 02m3 stops Denver Intl Los Angeles Hong Kong Intl

4:55 pm - 9:46 pmBKK Bangkok Suvarnabhumi-HLN Helena

42h 51m3 stops Hong Kong Intl Los Angeles Denver Intl

$1,217United Airlines

Fri, Nov 27 - Fri, Dec 4

5:45 am - 12:20 amHLN Helena-BKK Bangkok Suvarnabhumi

28h 35m2 stops Salt Lake City Incheon Intl

1:05 am - 10:41 pmBKK Bangkok Suvarnabhumi-HLN Helena

34h 36m2 stops Incheon Intl Salt Lake City

$1,222Delta

Thu, Mar 11 - Sat, Mar 20

2:23 pm - 12:20 amHLN Helena-BKK Bangkok Suvarnabhumi

43h 57m2 stops Denver Intl Tokyo Narita

4:55 pm - 1:52 pmBKK Bangkok Suvarnabhumi-HLN Helena

34h 57m3 stops Hong Kong Intl Los Angeles Denver Intl

$1,227United Airlines

Fri, Nov 27 - Fri, Dec 4

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Delta flights from Helena to Thailand

Our best Delta deals on Helena to Thailand flight tickets

Delta

Mar 12

HLN12:50 pmHelena

44h 15m

2 stops

BKK11:05 pmBangkok Suvarnabhumi

Mar 22

BKK9:40 pmBangkok Suvarnabhumi

38h 01m

2 stops

HLN10:41 pmHelena

$1,118

Delta

Mar 12

HLN12:50 pmHelena

58h 35m

2 stops

BKK1:25 pmBangkok Suvarnabhumi

Mar 21

BKK9:50 amBangkok Suvarnabhumi

25h 51m

2 stops

HLN10:41 pmHelena

$1,158

Delta

Mar 11

HLN5:45 amHelena

25h 45m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Mar 22

BKK11:15 pmBangkok Suvarnabhumi

36h 26m

2 stops

HLN10:41 pmHelena

$1,182

United Airlines flights from Helena to Thailand

Our best United Airlines deals on Helena to Thailand flight tickets

United Airlines

Apr 3

HLN7:00 amHelena

37h 35m

3 stops

BKK9:35 amBangkok Suvarnabhumi

Apr 6

BKK3:45 pmBangkok Suvarnabhumi

42h 14m

3 stops

HLN8:59 pmHelena

$1,131

United Airlines

Nov 26

HLN6:28 amHelena

39h 02m

3 stops

BKK11:30 amBangkok Suvarnabhumi

Dec 3

BKK4:55 pmBangkok Suvarnabhumi

42h 51m

3 stops

HLN9:46 pmHelena

$1,150

United Airlines

Mar 12

HLN7:00 amHelena

62h 30m

3 stops

BKK11:30 amBangkok Suvarnabhumi

Mar 22

BKK4:55 pmBangkok Suvarnabhumi

33h 32m

3 stops

HLN1:27 pmHelena

$1,191

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Fri 3/12

12:50 pm-11:05 pm

2 stops44h 15m

Bangkok Suvarnabhumi

Mon 3/22

9:40 pm-10:41 pm

2 stops38h 01m

$1,118

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Sat 4/3

7:00 am-9:35 am

3 stops37h 35m

Bangkok Suvarnabhumi

Tue 4/6

3:45 pm-8:59 pm

3 stops42h 14m

$1,131

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Thu 11/26

6:28 am-11:30 am

3 stops39h 02m

Bangkok Suvarnabhumi

Thu 12/3

4:55 pm-9:46 pm

3 stops42h 51m

$1,150

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Fri 3/12

12:50 pm-1:25 pm

2 stops58h 35m

Bangkok Suvarnabhumi

Sun 3/21

9:50 am-10:41 pm

2 stops25h 51m

$1,158

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Thu 4/1

4:08 pm-12:00 pm

2 stops30h 52m

Bangkok Suvarnabhumi

Tue 4/13

1:10 pm-3:31 pm

2 stops39h 21m

$1,173

Quickest round-trip

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Thu 3/11

5:45 am-9:30 pm

2 stops25h 45m

Bangkok Suvarnabhumi

Mon 3/22

11:15 pm-10:41 pm

2 stops36h 26m

$1,182

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Fri 3/12

7:00 am-11:30 am

3 stops62h 30m

Bangkok Suvarnabhumi

Mon 3/22

4:55 pm-1:27 pm

3 stops33h 32m

$1,191

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Fri 11/27

6:28 am-11:30 am

3 stops39h 02m

Bangkok Suvarnabhumi

Fri 12/4

4:55 pm-9:46 pm

3 stops42h 51m

$1,217

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Thu 3/11

5:45 am-12:20 am

2 stops28h 35m

Bangkok Suvarnabhumi

Sat 3/20

1:05 am-10:41 pm

2 stops34h 36m

$1,222

HelenaBangkok

HLN Helena - BKK Bangkok Suvarnabhumi

HLNBKK

Helena

Fri 11/27

2:23 pm-12:20 am

2 stops43h 57m

Bangkok Suvarnabhumi

Fri 12/4

4:55 pm-1:52 pm

3 stops34h 57m

$1,227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Helena to Thailand

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 Thailand?

Qatar Airways is the most popular carrier operating from Helena to Thailand

Cheap Helena to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Thailand

Best Price Found	$3,416
Fastest flight time	26h 22m
Direct flights	None

The best one-way flight to Thailand from Helena in the past 72 hours is $3,416. The best round-trip flight deal from Helena to Thailand found on momondo in the last 72 hours is $1,118.

The fastest flight from Helena to Thailand takes 26h 22m

There are no direct flights from Helena to Thailand. There are no popular flight routes from Helena to Thailand.

Search flight deals

Frequently asked questions about flying from Helena to Thailand

When did momondo last update prices for flights from Helena Airport to Thailand?
Prices for flights from Helena Airport to Thailand refresh daily.
How old do you have to be to fly from Helena Airport to Thailand?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Thailand.
What documentation or ID do you need to fly to Thailand?
The travel and health documents you'll need for your trip to Thailand may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Thailand. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Helena to Thailand. momondo saves you time and could save you money on your trip.

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

All flight searches from Helena to Thailand on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Thailand from Helena.

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

If you are simply researching potential flights to Thailand, momondo offers a useful price alert feature which will track prices for flights to Thailand from Helena and alert you when they change.