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$130+ Cheap flights from Medford to Ontario (MFR - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
MFR — ONT
oct. 10 — oct. 171
vie. 10/10
vie. 10/17
1 adult, Economy
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Cheap flight deals from Medford to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Medford (MFR) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 10, 2025.

Round-trip from

$219
(Kiwi.com)

One-way from

$130
(Delta)

Popular in

December

Cheapest in

October

Average price

$363
From Medford to Ontario
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One-way flight from Medford to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Medford to Ontario

Cheapest flights from Medford to Ontario
Explore the most affordable flight options available from Medford to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/59:42 pmMFR - ONT
1 stop9h 35mMultiple Airlines
jue. 10/910:05 amONT - MFR
1 stop5h 11mMultiple Airlines
Deal found 9/8$219
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2512:02 pmMFR - ONT
1 stop12h 01mAlaska Airlines
sáb. 11/17:20 amONT - MFR
1 stop4h 34mAlaska Airlines
Deal found 9/10$258
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/305:30 amMFR - ONT
1 stop6h 26mAmerican Airlines
mar. 10/76:15 amONT - MFR
1 stop7h 00mAmerican Airlines
Deal found 9/9$259
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/214:37 pmMFR - ONT
1 stop21h 23mMultiple Airlines
jue. 9/257:30 pmONT - MFR
1 stop20h 32mMultiple Airlines
Deal found 9/9$262
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/305:15 amMFR - ONT
1 stop7h 02mDelta
mar. 10/71:15 pmONT - MFR
2 stops9h 35mDelta
Deal found 9/9$264
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/511:40 amMFR - ONT
1 stop5h 28mDelta
lun. 12/81:20 pmONT - MFR
2 stops10h 11mDelta
Deal found 9/7$268
This Hawaiian Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/812:39 pmMFR - ONT
1 stop4h 26mHawaiian Airlines
mar. 11/116:00 amONT - MFR
1 stop7h 55mHawaiian Airlines
Deal found 9/8$286
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/53:52 pmMFR - ONT
1 stop7h 59mAlaska Airlines
sáb. 10/117:10 amONT - MFR
1 stop12h 46mAlaska Airlines
Deal found 9/10$332
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2811:55 amMFR - ONT
1 stop6h 32mAlaska Airlines
mar. 12/96:00 amONT - MFR
1 stop7h 16mAlaska Airlines
Deal found 9/7$367

Cheapflights Fare Finder

 
Customize your flight search to find flights from Medford 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 10, 2025.
Use the filters below to find and compare flights from Medford to Ontario that are best for you.

Fly from

Medford

Fly to

Ontario

Route

Depart

Return

Price

MedfordOntario

MFR - ONT

MFRONT

Medford

mié. 10/29

1:26 pm-8:53 pm

1 stop7h 27m

Ontario

mié. 11/5

6:00 am-11:30 am

1 stop5h 30m

$258

MedfordOntario

MFR - ONT

MFRONT

Medford

sáb. 10/25

12:02 pm-12:03 am

1 stop12h 01m

Ontario

sáb. 11/1

7:20 am-11:54 am

1 stop4h 34m

$258

MedfordOntario

MFR - ONT

MFRONT

Medford

vie. 10/3

5:47 pm-12:03 am

1 stop6h 16m

Ontario

lun. 10/6

7:10 am-11:47 am

1 stop4h 37m

$262

MedfordOntario

MFR - ONT

MFRONT

Medford

vie. 12/5

3:36 pm-8:03 pm

1 stop4h 27m

Ontario

lun. 12/8

12:13 pm-8:06 pm

1 stop7h 53m

$262

MedfordOntario

MFR - ONT

MFRONT

Medford

mar. 9/30

5:15 am-12:17 pm

1 stop7h 02m

Ontario

mar. 10/7

1:15 pm-10:50 pm

2 stops9h 35m

$264

MedfordOntario

MFR - ONT

MFRONT

Medford

sáb. 10/25

6:00 am-11:08 am

1 stop5h 08m

Ontario

sáb. 11/1

1:15 pm-10:50 pm

2 stops9h 35m

$264

MedfordOntario

MFR - ONT

MFRONT

Medford

vie. 12/5

11:40 am-5:08 pm

1 stop5h 28m

Ontario

lun. 12/8

1:20 pm-11:31 pm

2 stops10h 11m

$268

MedfordOntario

MFR - ONT

MFRONT

Medford

sáb. 11/8

12:39 pm-5:05 pm

1 stop4h 26m

Ontario

mar. 11/11

6:00 am-1:55 pm

1 stop7h 55m

$286

MedfordOntario

MFR - ONT

MFRONT

Medford

jue. 1/15

3:40 pm-10:37 pm

1 stop6h 57m

Ontario

dom. 1/18

6:00 am-11:10 am

1 stop5h 10m

$314

MedfordOntario

MFR - ONT

MFRONT

Medford

dom. 10/5

4:06 pm-7:17 am

2 stops15h 11m

Ontario

jue. 10/9

10:05 am-3:16 pm

1 stop5h 11m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 22 results
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Best time to book a flight from Medford to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Medford with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Medford to Ontario

What is the cheapest month to book a flight from Medford to Ontario?

Currently, August is the cheapest month in which you can book a flight from Medford to Ontario (average of $246). Flying from Medford to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MFR to ONT?

Find hourly flight availability from Medford to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 10, 2025.

One of the essential ways to save on airfare from Medford to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 24% on airfare.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated septiembre 10, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Medford to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Medford to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Medford to Ontario?

    For as low as $262, Alaska Airlines can have you in Ontario from Medford in 6h 16m. Airlines will cover a distance of 641 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Medford to Ontario round-trip?

    Our cheapest airline available from Medford to Ontario is Delta. Our recent data shows that you can find tickets from as low as $218 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at $237 and $242 round-trip. These flights start at 41% lower than the current average price 3 months from now.

  • Can I find deals for flights from Medford to Ontario that include hotel bookings?

    Yes. In addition to deals on Medford to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Medford to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Medford to Ontario.

  • Can I find deals for business class flights from Medford to Ontario?

    Yes. Cheapflights offers flight deals from Medford to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Medford to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Medford to Ontario (average of $246). Flying from Medford to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Medford to Ontario

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Top 4 airlines flying from Medford to Ontario

Discover the top 4 airlines that operate flights from Medford to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$346FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$342FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$242Average$369FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$329Average$399FlexibilityNo cancel feeOn-time71%

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