$158 Cheap Delta flights Helena (HLN) to Ontario (ONT)

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$158 Cheap Delta flights Helena (HLN) to Ontario (ONT)

Prices were available within the past 7 days and start at $158 for one-way flights and $236 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Nov 8 - Sat, Nov 15
HLN
Helena
ONT
Ontario
$236 Roundtrip, found 6 days ago
$236
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Nov 8 from Helena to Ontario, returning Sat, Nov 15, priced at $236 found 6 days ago
Delta
Sat, Nov 8 - Thu, Nov 13
HLN
Helena
ONT
Ontario
$246 Roundtrip, found 6 days ago
$246
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Nov 8 from Helena to Ontario, returning Thu, Nov 13, priced at $246 found 6 days ago
Delta
Wed, Dec 3 - Tue, Dec 16
HLN
Helena
ONT
Ontario
$256 Roundtrip, found 2 days ago
$256
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 3 from Helena to Ontario, returning Tue, Dec 16, priced at $256 found 2 days ago
Delta
Sat, Dec 6 - Thu, Dec 18
HLN
Helena
ONT
Ontario
$297 Roundtrip, found 2 days ago
$297
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 6 from Helena to Ontario, returning Thu, Dec 18, priced at $297 found 2 days ago
Delta
Sat, Nov 15 - Mon, Nov 24
HLN
Helena
ONT
Ontario
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 15 from Helena to Ontario, returning Mon, Nov 24, priced at $302 found 2 days ago
Delta
Sat, Nov 22 - Wed, Dec 3
HLN
Helena
ONT
Ontario
$304 Roundtrip, found 2 days ago
$304
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 22 from Helena to Ontario, returning Wed, Dec 3, priced at $304 found 2 days ago
Flights from Helena (HLN) to Ontario (ONT)
Origin airport
Helena Regional
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Popular airline
Delta
Distance
915 mi

Frequently asked questions

How much is a Delta Air Lines flight from Helena Regional Airport (HLN) to Los Angeles - Ontario Intl. Airport (ONT)?
You'll discover budget-friendly return Delta Air Lines flights from $236 from HLN to ONT by organizing your results from "Price (lowest to highest)" on Expedia. Or look for options from $158 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 HLN to ONT with Delta Air Lines?
Delta Air Lines flights to Ontario are generally more affordable in the off-peak months of January and April. Whether you're after a return or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Helena Regional Airport (HLN) to Los Angeles - Ontario Intl. Airport (ONT) with Delta Air Lines?
Begin your search one to three months ahead of your travel date to find cheap fares on Delta Air Lines flights from Helena Regional Airport (HLN) to Los Angeles - Ontario Intl. Airport (ONT). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut 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 right, 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 Helena Regional Airport (HLN) to Los Angeles - Ontario Intl. Airport (ONT)?
Simply enter your dates, hit search and check "Nonstop" on Expedia to find any direct flights from HLN to ONT with Delta Air Lines or another carrier.
What is the earliest Delta Air Lines flight from HLN to ONT?
To find the earliest departures from HLN to ONT with Delta Air Lines, sort your results by "Morning" and "Early Morning." Choosing an early flight usually means cancellations are less likely.**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 Ontario?
Board a Delta Air Lines flight from Helena Regional Airport (HLN) to Ontario, and you're most likely to land at Los Angeles - Ontario Intl. Airport (ONT). This is the airline's main hub here.
Why fly with Delta Air Lines from HLN to ONT?
Delta Air Lines makes traveling from HLN to ONT enjoyable with an excellent in-flight experience and a rewarding loyalty program. You also have the chance to earn points with Delta SkyMiles. Be sure to join Expedia's 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 Helena Regional Airport (HLN) to Los Angeles - Ontario Intl. Airport (ONT)?
Depending on the type of fare you purchased, a fee may apply if you modify or cancel your flight more than 24 hours after confirmation. To find flexible plane tickets, select our "Changes included" and "No cancel fee" boxes while searching for flights. For additional information on modifying or canceling your reservation, go to "Trips," select your flight and tick "Manage Booking."

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