$185 Cheap Delta flights from Great Falls to Houston (GTF to IAH)

Find The Best Day To Fly from Great Falls to Houston

Amazing Delta GTF to IAH Flight Deals

The cheapest flights to George Bush Intercontinental found within the past 7 days were $374 round trip and $185 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Sep 23 - Wed, Sep 24
GTF
Great Falls
IAH
Houston
$374 Roundtrip, found 5 hours ago
$374
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Sep 23 from Great Falls to Houston, returning Wed, Sep 24, priced at $374 found 5 hours ago
Wed, Aug 20 - Sat, Aug 23
GTF
Great Falls
IAH
Houston
$380 Roundtrip, found 4 days ago
$380
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Aug 20 from Great Falls to Houston, returning Sat, Aug 23, priced at $380 found 4 days ago
Wed, Sep 24 - Sat, Sep 27
GTF
Great Falls
IAH
Houston
$384 Roundtrip, found 5 hours ago
$384
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Sep 24 from Great Falls to Houston, returning Sat, Sep 27, priced at $384 found 5 hours ago
Wed, Aug 20 - Wed, Aug 27
GTF
Great Falls
IAH
Houston
$390 Roundtrip, found 4 days ago
$390
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Aug 20 from Great Falls to Houston, returning Wed, Aug 27, priced at $390 found 4 days ago
Wed, Sep 24 - Sat, Sep 27
GTF
Great Falls
IAH
Houston
$420 Roundtrip, found 5 hours ago
$420
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Sep 24 from Great Falls to Houston, returning Sat, Sep 27, priced at $420 found 5 hours ago
Wed, Sep 24 - Sat, Sep 27
GTF
Great Falls
IAH
Houston
$421 Roundtrip, found 5 hours ago
$421
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Sep 24 from Great Falls to Houston, returning Sat, Sep 27, priced at $421 found 5 hours ago

Frequently asked questions

Can I catch a flight from Great Falls Intl. Airport to Houston Airport right now?
For any present Houston Airport travel advice and quarantine requirements, visit our Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught up en route.
What terminal is Delta Air Lines at Great Falls Intl. Airport (GTF)?
If you're traveling with Delta Air Lines from Great Falls Intl. Airport to IAH, you should be able to find out the terminal information when you receive your boarding pass. If not, consult your airline.
Are there Delta Air Lines non-stop flights from GTF to IAH?
If you're flying with Delta Air Lines from GTF to IAH, you'll have to make a stopover. While waiting for your connection, use the time to grab a bite to eat or go for a walk.
How long is a Delta Air Lines flight from GTF to IAH?
Have a power nap and begin your getaway feeling refreshed. You'll have more than enough time to do so when traveling with Delta Air Lines between GTF and IAH, with the flight taking about 4 hours and 30 minutes.
How many direct and indirect flights does Delta Air Lines fly from GTF to IAH?
You'll have a choice of around 2 flights daily with Delta Air Lines from GTF to George Bush Intercontinental Airport (IAH).
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 George Bush Intercontinental Airport (IAH), 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

Travelers ❤️ these 🏨 after their flight to Houston

Houston Airport Marriott at George Bush Intercontinental

Houston Airport Marriott at George Bush Intercontinental

3.5 out of 5
18700 John F Kennedy Blvd, Houston, TX
This hotel features a restaurant, an outdoor pool, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
8.6/10 Excellent! (1,716 reviews)
Short over night stay
"Hotel was very accommodating and it was a short overnight stay however highly recommend staying here especially if you have an overnight in Houston."

Reviewed on Jul 16, 2025

Houston Airport Marriott at George Bush Intercontinental
SpringHill Suites by Marriott Houston Intercontinental Arprt

SpringHill Suites by Marriott Houston Intercontinental Arprt

3 out of 5
15840 John F Kennedy Blvd, Houston, TX
This hotel features an outdoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
8.8/10 Excellent! (1,439 reviews)
"We had a short one night stay due to flight delays, the room was very nice and clean, cool shower! The airport shuttle was clean and prompt!"

Reviewed on Jul 15, 2025

SpringHill Suites by Marriott Houston Intercontinental Arprt
Courtyard by Marriott Houston Intercontinental Airport

Courtyard by Marriott Houston Intercontinental Airport

3 out of 5
15838 John F Kennedy Blvd, Houston, TX
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the business center, free WiFi in public areas, and ...
8.8/10 Excellent! (1,008 reviews)
"Clean smelled nice and quick check in"

Reviewed on Jul 16, 2025

Courtyard by Marriott Houston Intercontinental Airport
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.