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Cheap flights from Aspen to Los Angeles from $286

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Aspen to Los Angeles departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Aspen to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:27 pm - 8:36 pm
ASE
-
ONT
7h 09m
1 stop
United Airlines Logo
5:10 am - 11:09 am
ONT
-
ASE
4h 59m
1 stop
$449United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
3:29 pm - 8:36 pm
ASE
-
ONT
6h 07m
1 stop
United Airlines Logo
5:10 am - 12:25 pm
ONT
-
ASE
6h 15m
1 stop
$452United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
11:32 am - 10:50 pm
ASE
-
ONT
12h 18m
2 stops
United Airlines Logo
5:00 am - 10:51 am
ONT
-
ASE
4h 51m
1 stop
$454United Airlines
Sat, May 30 - Mon, Jun 15
United Airlines Logo
3:29 pm - 8:36 pm
ASE
-
ONT
6h 07m
1 stop
United Airlines Logo
5:10 am - 11:09 am
ONT
-
ASE
4h 59m
1 stop
$494United Airlines
Wed, Apr 8 - Mon, Apr 13
United Airlines Logo
3:29 pm - 8:36 pm
ASE
-
ONT
6h 07m
1 stop
United Airlines Logo
5:10 am - 1:23 pm
ONT
-
ASE
7h 13m
1 stop
$602United Airlines
Fri, Apr 10 - Mon, Apr 13
United Airlines Logo
2:22 pm - 8:42 pm
ASE
-
ONT
7h 20m
1 stop
United Airlines Logo
5:00 am - 10:51 am
ONT
-
ASE
4h 51m
1 stop
$1,981United Airlines
Sun, Jul 26 - Thu, Jul 30

United Airlines flights from Aspen to Ontario

Our best United Airlines deals on Aspen to Ontario flight tickets
United Airlines
Apr 1
ASE2:27 pmAspen Pitkin County
7h 09m
1 stop
ONT8:36 pmOntario
Apr 15
ONT5:10 amOntario
6h 15m
1 stop
ASE12:25 pmAspen Pitkin County
$449
United Airlines
Apr 16
ASE3:29 pmAspen Pitkin County
6h 07m
1 stop
ONT8:36 pmOntario
Apr 19
ONT5:10 amOntario
6h 15m
1 stop
ASE12:25 pmAspen Pitkin County
$452
United Airlines
May 30
ASE11:32 amAspen Pitkin County
12h 18m
2 stops
ONT10:50 pmOntario
Jun 15
ONT5:00 amOntario
4h 51m
1 stop
ASE10:51 amAspen Pitkin County
$454

momondo Fare Finder

 
Customize your flight search to find flights from Aspen to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 24, 2026.
Use the filters below to find and compare flights from Aspen to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Thu 4/16

2:27 pm-8:36 pm

1 stop7h 09m

Ontario

Sun 4/19

5:10 am-11:09 am

1 stop4h 59m

$449

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Thu 4/16

3:29 pm-8:36 pm

1 stop6h 07m

Ontario

Sun 4/19

5:10 am-12:25 pm

1 stop6h 15m

$452

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Sat 5/30

11:32 am-10:50 pm

2 stops12h 18m

Ontario

Mon 6/15

5:00 am-10:51 am

1 stop4h 51m

$454
Quickest round-trip

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Wed 4/8

3:29 pm-8:36 pm

1 stop6h 07m

Ontario

Mon 4/13

5:10 am-11:09 am

1 stop4h 59m

$494

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Fri 4/10

3:29 pm-8:36 pm

1 stop6h 07m

Ontario

Mon 4/13

5:10 am-1:23 pm

1 stop7h 13m

$602

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Sun 7/26

2:22 pm-8:42 pm

1 stop7h 20m

Ontario

Thu 7/30

5:00 am-10:51 am

1 stop4h 51m

$1,981
Cheapest one-way

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Thu 8/20

8:30 am-12:38 pm

1 stop5h 08m

$286

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Thu 8/20

9:15 am-6:11 pm

2 stops9h 56m

$291
Quickest one-way

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Wed 4/1

1:40 pm-5:47 pm

1 stop5h 07m

$341

AspenOntario

ASE - ONT

ASEONT

Aspen Pitkin County

Wed 4/1

11:15 am-5:47 pm

2 stops7h 32m

$346

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Aspen 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

What is the cheapest airline that flies from Aspen Pitkin County to Ontario?

United Airlines is the most popular carrier operating from Aspen Pitkin County to Ontario

What airlines fly to Ontario?

United Airlines, American Airlines and Breeze Airways are the top three most popular airlines that fly to Ontario from Aspen according to our data. United Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 4 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Aspen to Ontario

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

Cheap Aspen to Ontario (ASE to ONT) flight deals and tips

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

Fastest flight time

4h 23m

Direct flights

None
The fastest flight from Aspen to Ontario takes 4h 23m
There are no direct flights from Aspen to Ontario. There are no popular flight routes from Aspen to Ontario.
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  • How far is Aspen Pitkin County to Ontario by plane?

    The straight-line distance from Aspen Pitkin County to Ontario is 696.2 mi. 4h 23m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Aspen Pitkin County Airport to Ontario Airport?

    Prices for flights from Aspen Pitkin County Airport to Ontario Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Aspen Pitkin County Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Aspen Pitkin County Airport to Ontario Airport.

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

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Aspen to Ontario for you.

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

Yes. momondo enables you to select and highlight flights to Ontario from Aspen with this policy.

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

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

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

If you are not ready to book a flight from Aspen to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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