What is the cheapest airline that flies from Tucson to Ontario?

Southwest and United Airlines are the most popular carriers operating from Tucson to Ontario

What airlines fly to Ontario?

American Airlines, Southwest and Delta are the top three most popular airlines that fly to Ontario from Tucson according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Tucson Airport to Ontario Airport?

Prices for flights from Tucson Airport to Ontario Airport were last updated today.

How many operators does momondo search for flights from Tucson Airport to Ontario Airport?

The number of operators available for flights from Tucson Airport to Ontario Airport is 2 as of September 2026.

How old do you have to be to fly from Tucson Airport to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tucson Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$139 Cheap Flights from Tucson to Ontario in 2026

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Find the cheapest flights from Tucson to Los Angeles

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4:40 pm - 10:11 pmTUS Tucson-ONT Ontario

5h 31m1 stop Salt Lake City

9:45 am - 4:00 pmONT Ontario-TUS Tucson

6h 15m1 stop Salt Lake City

$315Delta

Sat, Oct 24 - Tue, Oct 27

4:30 pm - 11:55 pmTUS Tucson-ONT Ontario

7h 25m1 stop Salt Lake City

9:45 am - 4:00 pmONT Ontario-TUS Tucson

6h 15m1 stop Salt Lake City

$315Delta

Tue, Oct 20 - Tue, Oct 27

7:08 am - 12:36 pmTUS Tucson-ONT Ontario

5h 28m1 stop Salt Lake City

5:03 pm - 9:37 pmONT Ontario-TUS Tucson

4h 34m1 stop Salt Lake City

$315Delta

Sat, Oct 24 - Sat, Oct 24

7:08 am - 12:36 pmTUS Tucson-ONT Ontario

5h 28m1 stop Salt Lake City

6:00 am - 10:24 amONT Ontario-TUS Tucson

4h 24m1 stop Salt Lake City

$315Delta

Wed, Oct 21 - Tue, Oct 27

7:00 am - 2:25 pmTUS Tucson-ONT Ontario

7h 25m1 stop Denver Intl

5:45 pm - 10:25 pmONT Ontario-TUS Tucson

4h 40m1 stop Las Vegas Harry Reid Intl

$331Southwest

Wed, Sep 23 - Fri, Sep 25

9:45 am - 6:35 pmTUS Tucson-ONT Ontario

8h 50m2 stops San Diego Oakland

4:50 pm - 9:45 pmONT Ontario-TUS Tucson

4h 55m1 stop Phoenix Sky Harbor Intl

$336Southwest

Wed, Sep 23 - Fri, Sep 25

8:36 am - 12:06 pmTUS Tucson-ONT Ontario

3h 30m1 stop Phoenix Sky Harbor Intl

6:15 am - 9:39 amONT Ontario-TUS Tucson

3h 24m1 stop Phoenix Sky Harbor Intl

$347American Airlines

Thu, Sep 17 - Mon, Sep 21

3:03 pm - 6:43 pmTUS Tucson-ONT Ontario

3h 40m1 stop Phoenix Sky Harbor Intl

4:29 pm - 7:46 pmONT Ontario-TUS Tucson

3h 17m1 stop Phoenix Sky Harbor Intl

$371American Airlines

Mon, Oct 5 - Wed, Oct 7

6:45 am - 12:06 pmTUS Tucson-ONT Ontario

5h 21m1 stop Phoenix Sky Harbor Intl

6:15 am - 11:11 amONT Ontario-TUS Tucson

4h 56m1 stop Phoenix Sky Harbor Intl

$371American Airlines

Thu, Oct 1 - Tue, Oct 6

3:00 pm - 10:15 pmTUS Tucson-ONT Ontario

7h 15m1 stop Denver Intl

1:35 pm - 4:50 pmONT Ontario-TUS Tucson

3h 15m1 stop Las Vegas Harry Reid Intl

$371Southwest

Fri, Oct 2 - Tue, Oct 6

Cheap last minute flights

Enter your travel dates to find the best prices.

1:29 pm - 8:53 pmTUS Tucson-ONT Ontario

7h 24m1 stop Denver Intl

5:00 am - 12:27 pmONT Ontario-TUS Tucson

7h 27m1 stop Denver Intl

$347United Airlines

Sat, Sep 5 - Sun, Sep 6

1:29 pm - 8:53 pmTUS Tucson-ONT Ontario

7h 24m1 stop Denver Intl

1:56 pm - 6:39 pmONT Ontario-TUS Tucson

4h 43m1 stop San Francisco

$347United Airlines

Sat, Sep 5 - Sat, Sep 12

4:50 pm - 10:23 pmTUS Tucson-ONT Ontario

5h 33m1 stop Salt Lake City

5:15 pm - 9:40 pmONT Ontario-TUS Tucson

4h 25m1 stop Salt Lake City

$399Delta

Sat, Sep 5 - Mon, Sep 14

5:35 am - 8:45 amTUS Tucson-ONT Ontario

3h 10m1 stop Las Vegas Harry Reid Intl

5:40 am - 11:05 amONT Ontario-TUS Tucson

5h 25m2 stops Las Vegas Harry Reid Intl San Diego

$465Southwest

Sat, Sep 5 - Mon, Sep 14

6:40 am - 2:15 pmTUS Tucson-ONT Ontario

7h 35m2 stops San Diego San Jose

1:15 pm - 9:05 pmONT Ontario-TUS Tucson

7h 50m2 stops Sacramento Intl Los Angeles

$484Southwest

Sat, Sep 5 - Mon, Sep 14

4:50 pm - 10:23 pmTUS Tucson-ONT Ontario

5h 33m1 stop Salt Lake City

6:00 am - 10:30 amONT Ontario-TUS Tucson

4h 30m1 stop Salt Lake City

$485Delta

Sat, Sep 5 - Mon, Sep 7

5:35 am - 9:20 amTUS Tucson-ONT Ontario

3h 45m1 stop Phoenix Sky Harbor Intl

4:45 pm - 8:30 pmONT Ontario-TUS Tucson

3h 45m1 stop Las Vegas Harry Reid Intl

$520Southwest

Fri, Sep 4 - Wed, Sep 9

11:36 am - 3:19 pmTUS Tucson-ONT Ontario

3h 43m1 stop Phoenix Sky Harbor Intl

6:15 am - 10:54 amONT Ontario-TUS Tucson

4h 39m1 stop Phoenix Sky Harbor Intl

$747American Airlines

Fri, Sep 4 - Tue, Sep 8

11:36 am - 3:19 pmTUS Tucson-ONT Ontario

3h 43m1 stop Phoenix Sky Harbor Intl

6:15 am - 11:13 amONT Ontario-TUS Tucson

4h 58m1 stop Phoenix Sky Harbor Intl

$747American Airlines

Fri, Sep 4 - Mon, Sep 7

8:40 am - 12:03 pmTUS Tucson-ONT Ontario

3h 23m1 stop Phoenix Sky Harbor Intl

12:59 pm - 4:49 pmONT Ontario-TUS Tucson

3h 50m1 stop Phoenix Sky Harbor Intl

$747American Airlines

Thu, Sep 3 - Tue, Sep 8

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United Airlines flights from Tucson to Ontario

Our best United Airlines deals on Tucson to Ontario flight tickets

United Airlines

Sep 11

TUS7:00 amTucson

5h 12m

1 stop

ONT12:12 pmOntario

Sep 12

ONT8:00 amOntario

4h 29m

1 stop

TUS12:29 pmTucson

$277

United Airlines

Sep 5

TUS1:29 pmTucson

7h 24m

1 stop

ONT8:53 pmOntario

Sep 6

ONT5:00 amOntario

7h 27m

1 stop

TUS12:27 pmTucson

$347

United Airlines

Oct 26

TUS3:23 pmTucson

4h 52m

1 stop

ONT8:15 pmOntario

Oct 28

ONT6:00 amOntario

4h 38m

1 stop

TUS10:38 amTucson

$385

Alaska Airlines flights from Tucson to Ontario

Our best Alaska Airlines deals on Tucson to Ontario flight tickets

Alaska Airlines

Sep 7

TUS7:00 amTucson

28h 16m

1 stop

ONT11:16 amOntario

Sep 29

ONT12:12 pmOntario

9h 14m

1 stop

TUS9:26 pmTucson

$887

Alaska Airlines

Sep 15

TUS7:00 amTucson

10h 18m

2 stops

ONT5:18 pmOntario

Sep 17

ONT7:59 pmOntario

18h 14m

1 stop

TUS2:13 pmTucson

$916

Alaska Airlines

Sep 11

TUS7:00 amTucson

10h 18m

2 stops

ONT5:18 pmOntario

Sep 13

ONT6:02 amOntario

8h 11m

1 stop

TUS2:13 pmTucson

$961

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Sat 10/24

4:40 pm-10:11 pm

1 stop5h 31m

Ontario

Tue 10/27

9:45 am-4:00 pm

1 stop6h 15m

$315

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Tue 10/20

4:30 pm-11:55 pm

1 stop7h 25m

Ontario

Tue 10/27

9:45 am-4:00 pm

1 stop6h 15m

$315

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Sat 10/24

7:08 am-12:36 pm

1 stop5h 28m

Ontario

Sat 10/24

5:03 pm-9:37 pm

1 stop4h 34m

$315

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Wed 10/21

7:08 am-12:36 pm

1 stop5h 28m

Ontario

Tue 10/27

6:00 am-10:24 am

1 stop4h 24m

$315

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Wed 9/23

7:00 am-2:25 pm

1 stop7h 25m

Ontario

Fri 9/25

5:45 pm-10:25 pm

1 stop4h 40m

$331

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Wed 9/23

9:45 am-6:35 pm

2 stops8h 50m

Ontario

Fri 9/25

4:50 pm-9:45 pm

1 stop4h 55m

$336

Quickest round-trip

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Thu 9/17

8:36 am-12:06 pm

1 stop3h 30m

Ontario

Mon 9/21

6:15 am-9:39 am

1 stop3h 24m

$347

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Mon 10/5

3:03 pm-6:43 pm

1 stop3h 40m

Ontario

Wed 10/7

4:29 pm-7:46 pm

1 stop3h 17m

$371

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Thu 10/1

6:45 am-12:06 pm

1 stop5h 21m

Ontario

Tue 10/6

6:15 am-11:11 am

1 stop4h 56m

$371

TucsonOntario

TUS Tucson - ONT Ontario

TUSONT

Tucson

Fri 10/2

3:00 pm-10:15 pm

1 stop7h 15m

Ontario

Tue 10/6

1:35 pm-4:50 pm

1 stop3h 15m

$371

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Tucson to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, September is the cheapest month to fly from Tucson to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $162. If you aren’t able to travel during the month of September, then book flights to Ontario from Tucson during December instead. Flights to Ontario in December, while not as cheap as those in September, still average around $306.

How have Tucson to Ontario flight prices changed over time?

As of September 2026, prices for Tucson to Ontario flights are approximately 51% cheaper when compared to flights at the same time last year.

When to book flights from Tucson to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Tucson to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Tucson to Ontario (TUS to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Tucson to Ontario

Best Price Found	$139
Fastest flight time	4h 42m
Direct flights	None

The best one-way flight to Ontario from Tucson in the past 72 hours is $139. The best round-trip flight deal from Tucson to Ontario found on momondo in the last 72 hours is $315.

The fastest flight from Tucson to Ontario takes 4h 42m

There are no direct flights from Tucson to Ontario. There are no popular flight routes from Tucson to Ontario.

Search flight deals

Frequently asked questions about flying from Tucson to Ontario

How far is Tucson to Ontario by plane?
The straight-line distance from Tucson to Ontario is 406.7 mi. Typically, this will take 4h 42m by plane in normal conditions.
When did momondo last update prices for flights from Tucson Airport to Ontario Airport?
Prices for flights from Tucson Airport to Ontario Airport were last updated today.
How many operators does momondo search for flights from Tucson Airport to Ontario Airport?
The number of operators available for flights from Tucson Airport to Ontario Airport is 2 as of September 2026.
How old do you have to be to fly from Tucson Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tucson Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Tucson to Ontario?
Based on momondo bookings for flights between Tucson and Ontario, the leading airline is American Airlines, making up 67% of the total bookings. Other popular airlines include Southwest with 33%.

Best airlines flying from Tucson to Ontario

Compare and see reviews for airlines that fly from Tucson to Ontario with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $279	Free Cancellation	Rating 7.1 12,026 reviews		Search American Airlines flights
Southwest	PriceFrom $302	Free Cancellation	Rating 8.0 4,194 reviews		Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Tucson to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Tucson to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from Tucson to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Tucson which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Tucson to Ontario?

momondo provides multiple filters to help you find the best flight to Ontario from Tucson. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Tucson to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Tucson are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Tucson to Los Angeles from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Tucson to Los Angeles departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Tucson to Ontario

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How to get the cheapest flight ticket from Tucson to Ontario

What is the cheapest month to fly to Ontario?

How have Tucson to Ontario flight prices changed over time?

What is the cheapest airline that flies from Tucson to Ontario?

What airlines fly to Ontario?

When to book flights from Tucson to Ontario

Cheap Tucson to Ontario (TUS to ONT) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Tucson to Ontario

Best airlines flying from Tucson to Ontario

Compare and see reviews for airlines that fly from Tucson to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Fly your favorite airline to Los Angeles

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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