Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Helena to the United States from $139

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 the United States departing on 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Helena to the United States

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:21 pm - 6:13 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$217Alaska Airlines
Sat, Oct 31 - Tue, Nov 3
Alaska Airlines Logo
5:18 pm - 6:14 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 56mnonstop
Alaska Airlines Logo
2:05 pm - 4:41 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$217Alaska Airlines
Sat, Sep 12 - Sat, Sep 26
Alaska Airlines Logo
4:41 pm - 5:33 pmHLN  Helena-SEA Seattle/Tacoma Intl
1h 52mnonstop
Alaska Airlines Logo
1:28 pm - 4:04 pmSEA  Seattle/Tacoma Intl-HLN Helena
1h 36mnonstop
$217Alaska Airlines
Sat, Nov 7 - Tue, Nov 10
Delta Logo
1:08 pm - 4:55 pmHLN  Helena-SEA Seattle/Tacoma Intl
4h 47m1 stop Salt Lake City
Delta Logo
5:25 am - 12:28 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 03m1 stop Salt Lake City
$227Delta
Tue, Oct 13 - Wed, Oct 21
Delta Logo
1:08 pm - 4:55 pmHLN  Helena-SEA Seattle/Tacoma Intl
4h 47m1 stop Salt Lake City
Delta Logo
5:25 am - 12:28 pmSEA  Seattle/Tacoma Intl-HLN Helena
6h 03m1 stop Salt Lake City
$227Delta
Tue, Oct 13 - Tue, Oct 20
Delta Logo
1:04 pm - 6:43 pmHLN  Helena-SEA Seattle/Tacoma Intl
6h 39m1 stop Salt Lake City
Delta Logo
5:35 am - 12:22 pmSEA  Seattle/Tacoma Intl-HLN Helena
5h 47m1 stop Salt Lake City
$247Delta
Fri, Nov 13 - Sun, Nov 15
United Airlines Logo
6:25 am - 8:35 amHLN  Helena-DEN Denver Intl
2h 10mnonstop
United Airlines Logo
7:18 pm - 9:18 pmDEN  Denver Intl-HLN Helena
2h 00mnonstop
$279United Airlines
Thu, Sep 24 - Sun, Sep 27
United Airlines Logo
2:23 pm - 4:34 pmHLN  Helena-DEN Denver Intl
2h 11mnonstop
United Airlines Logo
11:31 am - 1:40 pmDEN  Denver Intl-HLN Helena
2h 09mnonstop
$279United Airlines
Sun, Nov 8 - Tue, Nov 17
United Airlines Logo
6:15 am - 8:25 amHLN  Helena-DEN Denver Intl
2h 10mnonstop
United Airlines Logo
7:30 pm - 9:30 pmDEN  Denver Intl-HLN Helena
2h 00mnonstop
$279United Airlines
Fri, Sep 11 - Sun, Sep 13
Multiple Airlines Logo
5:26 pm - 10:10 amHLN  Helena-PHX Phoenix Sky Harbor Intl
41h 44m2 stops Seattle/Tacoma Intl Calgary
Multiple Airlines Logo
9:03 am - 4:04 pmPHX  Phoenix Sky Harbor Intl-HLN Helena
7h 01m1 stop Seattle/Tacoma Intl
$800Multiple Airlines
Thu, Oct 29 - Sun, Nov 8

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Helena to United States

Our best Delta deals on Helena to United States flight tickets
Delta
Oct 13
HLN1:08 pmHelena
4h 47m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Oct 21
SEA5:25 amSeattle/Tacoma Intl
6h 03m
1 stop
HLN12:28 pmHelena
$227
Delta
Nov 13
HLN1:04 pmHelena
6h 39m
1 stop
SEA6:43 pmSeattle/Tacoma Intl
Nov 15
SEA5:35 amSeattle/Tacoma Intl
5h 47m
1 stop
HLN12:22 pmHelena
$247
Delta
Oct 17
HLN1:08 pmHelena
6h 54m
1 stop
SEA7:02 pmSeattle/Tacoma Intl
Oct 21
SEA5:25 amSeattle/Tacoma Intl
6h 03m
1 stop
HLN12:28 pmHelena
$257

Alaska Airlines flights from Helena to United States

Our best Alaska Airlines deals on Helena to United States flight tickets
Alaska Airlines
Oct 31
HLN5:21 pmHelena
1h 52m
SEA6:13 pmSeattle/Tacoma Intl
Nov 3
SEA1:28 pmSeattle/Tacoma Intl
1h 36m
HLN4:04 pmHelena
$217
Alaska Airlines
Nov 13
HLN4:41 pmHelena
1h 52m
SEA5:33 pmSeattle/Tacoma Intl
Nov 15
SEA1:28 pmSeattle/Tacoma Intl
1h 36m
HLN4:04 pmHelena
$237
Alaska Airlines
Oct 13
HLN5:26 pmHelena
1h 52m
SEA6:18 pmSeattle/Tacoma Intl
Oct 22
SEA2:14 pmSeattle/Tacoma Intl
1h 35m
HLN4:49 pmHelena
$277

momondo Fare Finder

 
Customize your flight search to find flights from Helena to United States 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 13, 2026.
Use the filters below to find and compare flights from Helena to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 10/31

5:21 pm-6:13 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Tue 11/3

1:28 pm-4:04 pm

Nonstop1h 36m

$217

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 9/12

5:18 pm-6:14 pm

Nonstop1h 56m

Seattle/Tacoma Intl

Sat 9/26

2:05 pm-4:41 pm

Nonstop1h 36m

$217

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Sat 11/7

4:41 pm-5:33 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Tue 11/10

1:28 pm-4:04 pm

Nonstop1h 36m

$217

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Tue 10/13

1:08 pm-4:55 pm

1 stop4h 47m

Seattle/Tacoma Intl

Wed 10/21

5:25 am-12:28 pm

1 stop6h 03m

$227

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Tue 10/13

1:08 pm-4:55 pm

1 stop4h 47m

Seattle/Tacoma Intl

Tue 10/20

5:25 am-12:28 pm

1 stop6h 03m

$227

HelenaSeattle

HLN Helena - SEA Seattle/Tacoma Intl

HLNSEA

Helena

Fri 11/13

1:04 pm-6:43 pm

1 stop6h 39m

Seattle/Tacoma Intl

Sun 11/15

5:35 am-12:22 pm

1 stop5h 47m

$247

HelenaDenver

HLN Helena - DEN Denver Intl

HLNDEN

Helena

Thu 9/24

6:25 am-8:35 am

Nonstop2h 10m

Denver Intl

Sun 9/27

7:18 pm-9:18 pm

Nonstop2h 00m

$279

HelenaDenver

HLN Helena - DEN Denver Intl

HLNDEN

Helena

Sun 11/8

2:23 pm-4:34 pm

Nonstop2h 11m

Denver Intl

Tue 11/17

11:31 am-1:40 pm

Nonstop2h 09m

$279

HelenaDenver

HLN Helena - DEN Denver Intl

HLNDEN

Helena

Fri 9/11

6:15 am-8:25 am

Nonstop2h 10m

Denver Intl

Sun 9/13

7:30 pm-9:30 pm

Nonstop2h 00m

$279

HelenaPhoenix

HLN Helena - PHX Phoenix Sky Harbor Intl

HLNPHX

Helena

Thu 10/29

5:26 pm-10:10 am

2 stops41h 44m

Phoenix Sky Harbor Intl

Sun 11/8

9:03 am-4:04 pm

1 stop7h 01m

$800

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to the United States from

How to get the cheapest flight ticket from Helena to United States

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 month to fly to United States?

In general, April is the cheapest month to fly from Helena to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $336. If you aren’t able to travel during the month of April, then book flights to United States from Helena during October instead. Flights to United States in October, while not as cheap as those in April, still average around $362.

Can stopping save me money on Helena to United States flights?

You could potentially save up to 31% on your flight if you consider stops on a Helena to United States flight.

Cheap Helena to United States flight deals and tips

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

Best Price Found

$255

Fastest flight time

1h 25m

Direct flights

Every day

Airports in United States

4,301 airports
The best one-way flight to United States from Helena in the past 72 hours is $255. The best round-trip flight deal from Helena to United States found on momondo in the last 72 hours is $257.
The fastest flight from Helena to United States takes 1h 25m
Direct flights go from Helena to United States every day.
There are 4,301 airports in United States. From Helena there are direct flights to Denver Intl (DEN), Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Helena to the United States

  • When did momondo last update prices for flights from Helena Airport to United States?

    Prices for flights from Helena Airport to United States refresh daily.

  • How many operators does momondo search for flights from Helena Airport to United States?

  • How old do you have to be to fly from Helena Airport to United States?

    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 United States.

  • What documentation or ID do you need to fly to United States?

    The required travel and health documents for your United States trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United States. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Helena to United States?

Best airlines flying from Helena to United States

Compare and see reviews for airlines that fly from Helena to United States with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $219Free CancellationRating
7.4
10,112 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $238Free CancellationRating
7.9
12,803 reviews
Search Alaska Airlines flights
DeltaPriceFrom $238Free CancellationRating
7.8
8,504 reviews
Search Delta flights

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Helena to United States flights to just show those with flexible booking policies.

How can momondo help me find flights from Helena to United States?

Once all potential Helena to United States flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Helena to United States flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 9/12
Sat 9/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $82
Flights to Los Angelesfrom $50
Flights to Orlandofrom $46
Flights to Miamifrom $79
Flights to San Franciscofrom $46
Flights to Chicagofrom $56
Flights to Las Vegasfrom $59
Flights to Washington, D.C.from $74
Flights to Bostonfrom $72
Flights to Atlantafrom $51
Flights to Fort Lauderdalefrom $56
Flights to Dallasfrom $50