$140 Cheap Delta flights Phoenix (PHX) to Helena (HLN)

View $140 flight on Sat, Aug 16, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$140 Cheap Delta flights Phoenix (PHX) to Helena (HLN)

Prices were available within the past 7 days and start at $140 for one-way flights and $279 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 2 - Tue, Sep 9
PHX
Phoenix
HLN
Helena
$279 Roundtrip, found 6 hours ago
$279
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Sep 2 from Phoenix to Helena, returning Tue, Sep 9, priced at $279 found 6 hours ago
Delta
Sat, Aug 30 - Thu, Sep 4
PHX
Phoenix
HLN
Helena
$296 Roundtrip, found 16 hours ago
$296
Roundtrip
found 16 hours ago
Select Delta flight, departing Sat, Aug 30 from Phoenix to Helena, returning Thu, Sep 4, priced at $296 found 16 hours ago
Delta
Tue, Aug 12 - Wed, Aug 13
PHX
Phoenix
HLN
Helena
$302 Roundtrip, found 13 hours ago
$302
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, Aug 12 from Phoenix to Helena, returning Wed, Aug 13, priced at $302 found 13 hours ago
Delta
Sun, Aug 31 - Thu, Sep 4
PHX
Phoenix
HLN
Helena
$325 Roundtrip, found 16 hours ago
$325
Roundtrip
found 16 hours ago
Select Delta flight, departing Sun, Aug 31 from Phoenix to Helena, returning Thu, Sep 4, priced at $325 found 16 hours ago
Delta
Tue, Aug 5 - Sat, Aug 23
PHX
Phoenix
HLN
Helena
$326 Roundtrip, found 22 hours ago
$326
Roundtrip
found 22 hours ago
Select Delta flight, departing Tue, Aug 5 from Phoenix to Helena, returning Sat, Aug 23, priced at $326 found 22 hours ago
Delta
Sat, Aug 9 - Sat, Aug 23
PHX
Phoenix
HLN
Helena
$339 Roundtrip, found 22 hours ago
$339
Roundtrip
found 22 hours ago
Select Delta flight, departing Sat, Aug 9 from Phoenix to Helena, returning Sat, Aug 23, priced at $339 found 22 hours ago
Flights from Phoenix (PHX) to Helena (HLN)
Origin airport
Sky Harbor Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
910 mi

Frequently asked questions

How much is a Delta Air Lines flight from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
You can find budget-friendly return Delta Air Lines flights from $279 from PHX to HLN by organizing your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $140 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PHX to HLN with Delta Air Lines?
Delta Air Lines flights to Helena are typically cheaper in the low-season months of December and January. Whether you're searching for a return or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN) with Delta Air Lines?
Begin your search one to three months before your departure to score cheap fares on Delta Air Lines flights from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic journeys.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
To see if there's a direct journey from PHX to HLN with Delta Air Lines or another carrier, select the "Nonstop" filter when searching for tickets.
What is the earliest Delta Air Lines flight from PHX to HLN?
Search Delta Air Lines's earliest flights from PHX to HLN by checking the "Morning" and "Early Morning" filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Helena?
Delta Air Lines flights from Sky Harbor Intl. Airport (PHX) to Helena come in to Helena Regional Airport (HLN). This is the main gateway to this city.
Why fly with Delta Air Lines from PHX to HLN?
Delta Air Lines makes flying from PHX to HLN more comfortable with an excellent in-flight experience and a rewarding loyalty program. You could even start collecting points with Delta SkyMiles. Remember to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
Typically, you can cancel or modify your flight, although there may be additional fees if your booking was made over 24 hours ago. Need flexible options? Make use of our "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you need to alter your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for more details.

Explore a world of travel with Expedia

*Available to One Key members.