$147 Cheap Delta flights from Ontario to Great Falls (ONT to GTF)

Find The Best Day To Fly from Ontario to Great Falls

Amazing Delta ONT to GTF Flight Deals

The cheapest flights to Great Falls Intl. found within the past 7 days were $271 round trip and $147 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Aug 26 - Sun, Aug 31
ONT
Ontario
GTF
Great Falls
$271 Roundtrip, found 2 days ago
$271
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug 26 from Ontario to Great Falls, returning Sun, Aug 31, priced at $271 found 2 days ago
Sun, Aug 24 - Sun, Aug 31
ONT
Ontario
GTF
Great Falls
$285 Roundtrip, found 2 days ago
$285
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Aug 24 from Ontario to Great Falls, returning Sun, Aug 31, priced at $285 found 2 days ago
Tue, Aug 12 - Sat, Aug 16
ONT
Ontario
GTF
Great Falls
$292 Roundtrip, found 11 hours ago
$292
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Aug 12 from Ontario to Great Falls, returning Sat, Aug 16, priced at $292 found 11 hours ago
Sun, Aug 17 - Sat, Aug 23
ONT
Ontario
GTF
Great Falls
$302 Roundtrip, found 23 hours ago
$302
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, Aug 17 from Ontario to Great Falls, returning Sat, Aug 23, priced at $302 found 23 hours ago
Wed, Aug 27 - Sun, Aug 31
ONT
Ontario
GTF
Great Falls
$311 Roundtrip, found 2 days ago
$311
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Aug 27 from Ontario to Great Falls, returning Sun, Aug 31, priced at $311 found 2 days ago
Sun, Aug 17 - Sun, Aug 24
ONT
Ontario
GTF
Great Falls
$312 Roundtrip, found 23 hours ago
$312
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, Aug 17 from Ontario to Great Falls, returning Sun, Aug 24, priced at $312 found 23 hours ago

Frequently asked questions

Can I catch a flight from ONT to GTF right now?
Make sure you check out the Covid-19 Travel Advisor to find out if there are any current travel advice reports and quarantine requirements in effect in Great Falls Intl. Airport (GTF) when flying from Los Angeles - Ontario Intl. Airport (ONT).
What terminal is Delta Air Lines at Ontario Airport?
You should find out which terminal Delta Air Lines departs from at ONT once you're issued with your boarding pass. The same goes for information about your arrival at Great Falls Intl. Airport. If those details are missing, contact your airline.
Are there Delta Air Lines non-stop flights from ONT to GTF?
Be ready for a stopover when flying from Ontario Airport to GTF, as Delta Air Lines doesn't offer any direct flights on this route. While waiting for your connection, you might like to buy a gripping novel or a travel magazine from the airport bookstore to make the time go faster.
How long is a Delta Air Lines flight from ONT to GTF?
Your Delta Air Lines flight should get you from Los Angeles - Ontario Intl. Airport (ONT) to Great Falls Intl. Airport in roughly 3 hours and 29 minutes. If you're not too fond of conversing with other passengers while you're high up in the air, don't worry --- you won't have to chitchat for too long.
How many direct and indirect flights does Delta Air Lines fly from ONT to GTF?
You can choose from approximately 2 flights daily with Delta Air Lines from Ontario Airport to GTF.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Great Falls Intl. Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.
Delta Airports
Hop on a(n) Delta flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ATLUSAHartsfield-Jackson Atlanta Intl.252
DTWUSADetroit Metropolitan Wayne County156
MSPUSAMinneapolis - St. Paul Intl.131
SLCUSASalt Lake City Intl.116
SEAUSASeattle - Tacoma Intl.57
LAXUSALos Angeles Intl.41
AMSNLDSchiphol31
YYCCANCalgary Intl.26
YYZCANPearson Intl.24
JFKUSAJohn F. Kennedy Intl.23

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Crystal Inn Hotel & Suites Great Falls

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2.5 out of 5
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This hotel features an indoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
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Crystal Inn Hotel & Suites Great Falls
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.