ONT - GPT

$257 Find Cheap Flights from Ontario to Gulfport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Gulfport departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$349
Typical prices: $363-$453
American Airlines
Sat 8/8Fri 8/14
ONT - GPT • 1 stop
Cheapest one-way
$257
Multiple Airlines
Sun 8/16
ONT - GPT • 1 stop
Top airlines
Cheapest • from $349 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Ontario and Gulfport. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $527 (round-trip)
Shortest trip • 6h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Gulfport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Gulfport (ONT-GPT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Gulfport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Gulfport

Sat, Aug 8 - Fri, Aug 14
American Airlines Logo
2:43 pm - 11:16 pm
ONT
-
GPT
6h 33m
1 stop
American Airlines Logo
5:31 am - 9:34 am
GPT
-
ONT
6h 03m
1 stop
$349American Airlines
Sat, Aug 8 - Fri, Aug 14
American Airlines Logo
6:15 am - 11:16 pm
ONT
-
GPT
15h 01m
2 stops
American Airlines Logo
5:31 am - 9:34 am
GPT
-
ONT
6h 03m
1 stop
$388American Airlines
Fri, Dec 25 - Fri, Jan 1
American Airlines Logo
2:42 pm - 10:57 pm
ONT
-
GPT
6h 15m
1 stop
American Airlines Logo
7:36 pm - 11:46 pm
GPT
-
ONT
6h 10m
1 stop
$442American Airlines
Wed, Jul 29 - Wed, Aug 5
American Airlines Logo
2:15 pm - 10:57 pm
ONT
-
GPT
6h 42m
1 stop
American Airlines Logo
6:34 pm - 10:59 pm
GPT
-
ONT
6h 25m
1 stop
$447American Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
9:15 am - 7:38 pm
ONT
-
GPT
8h 23m
1 stop
United Airlines Logo
2:00 pm - 6:12 pm
GPT
-
ONT
6h 12m
1 stop
$449United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
6:08 am - 7:38 pm
ONT
-
GPT
11h 30m
2 stops
United Airlines Logo
2:00 pm - 6:12 pm
GPT
-
ONT
6h 12m
1 stop
$454United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
6:08 am - 7:38 pm
ONT
-
GPT
11h 30m
2 stops
United Airlines Logo
2:00 pm - 8:53 pm
GPT
-
ONT
8h 53m
2 stops
$459United Airlines
Sun, Aug 30 - Sat, Sep 12
United Airlines Logo
6:00 am - 4:12 pm
ONT
-
GPT
8h 12m
1 stop
United Airlines Logo
4:59 pm - 9:59 pm
GPT
-
ONT
7h 00m
1 stop
$484United Airlines
Tue, Sep 1 - Sat, Sep 12
United Airlines Logo
6:08 am - 7:38 pm
ONT
-
GPT
11h 30m
2 stops
United Airlines Logo
4:59 pm - 9:59 pm
GPT
-
ONT
7h 00m
1 stop
$489United Airlines
Mon, Aug 10 - Fri, Aug 21
Delta Logo
10:00 pm - 9:15 am
ONT
-
GPT
9h 15m
1 stop
Delta Logo
1:48 pm - 6:30 pm
GPT
-
ONT
6h 42m
1 stop
$493Delta
Booking Insights

KAYAK's insights & trends for Ontario to Gulfport flights

Get data-powered insights and trends into flights from Ontario to Gulfport to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Gulfport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Gulfport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Gulfport is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $742 and $689 respectively.

Good to know

Low seasonAugust
Cheapest flight$257
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Ontario to Gulfport

When to book flights from Ontario to Gulfport

Are your dates flexible? Find out the best times to travel from Ontario to Gulfport based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Gulfport

  • What is the cheapest flight from Ontario to Gulfport?

    In the last 5 days, the lowest price for a flight from Ontario to Gulfport was $257 for a one-way ticket and $349 for a round-trip.

  • Do I need a passport to fly between Ontario and Gulfport?

    No, a passport isn't needed to fly from Ontario to Gulfport. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Gulfport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Gulfport?

    Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Gulfport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Gulfport, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Gulfport are United Airlines and American Airlines. With an average price for the route of $582 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $511 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Ontario to Gulfport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Gulfport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Gulfport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Gulfport from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Gulfport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Gulfport with an airline and back to Ontario with another airline. Booking your flights between Ontario and GPT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Gulfport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Gulfport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Gulfport

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Gulfport. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Gulfport? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9988 reviews
7.7Boarding
8.1Crew
7.3Comfort
6.7Food
7.1Entertainment
Airline reviews

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

8.0 ExcellentCheryl, Jul 2026
SFO - SBP
Read more United Airlines reviews

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

Service was professional and quick. Premium economy seat was comfortable given the class

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Over the course of 7 months of travel, I can count on my hand the number of times the flight has departed on time. Majority of the instances have been related to non-weather reasons. Would not recommend flying this Airline

My luggage never made it, I booked business class only to find out I’m sitting in the back. Very disappointed with the reservation

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

The flight was on time and arrived early. The crew were friendly and helpful.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

American was having a problem with their kiosks when I arrived which made the check-in and bag drop process unusually long. Additionally, they only had one person working check-in. Eventually, the kiosks were fixed and everything else went smoothly.

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

The flight was short. However, my bag was delayed and was put on another flight.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

Everything you need to know for your flight from Ontario to Gulfport

Information on your arrival and departure airports