Find flights
When to book
Airlines
FAQs

Cheap flights from Ottawa to Fremont from C$ 260

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SFO
5 Jun — 12 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Fremont

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Fremont
Explore the most affordable flight options available from Ottawa to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 May 2026.

Tue 23/66:15 p.m.
YOW
-
SFO
2 stops20h 45m
WestJet
Tue 7/76:05 p.m.
SFO
-
YOW
1 stop8h 30m
WestJet
Deal found 1/5C$ 479
Tue 30/66:55 a.m.
YOW
-
SFO
2 stops12h 45m
WestJet
Thu 9/76:00 a.m.
SFO
-
YOW
1 stop10h 20m
WestJet
Deal found 2/5C$ 483
Mon 15/612:25 p.m.
YOW
-
SFO
2 stops26h 35m
WestJet
Mon 22/66:00 a.m.
SFO
-
YOW
2 stops27h 30m
WestJet
Deal found 1/5C$ 488
Tue 16/66:15 p.m.
YOW
-
SFO
2 stops25h 25m
WestJet
Tue 23/66:00 a.m.
SFO
-
YOW
1 stop20h 35m
WestJet
Deal found 1/5C$ 504
Tue 30/66:55 a.m.
YOW
-
SFO
2 stops12h 45m
WestJet
Wed 15/76:05 p.m.
SFO
-
YOW
1 stop8h 30m
WestJet
Deal found 4/5C$ 505
Wed 1/76:00 a.m.
YOW
-
SFO
1 stop9h 00m
WestJet
Sun 5/76:00 a.m.
SFO
-
YOW
2 stops27h 30m
WestJet
Deal found 3/5C$ 513

Find flight deals from Ottawa to Fremont

Keep the following information in mind while searching for Ottawa to Fremont flight deals. Data was last updated 6 May 2026.

Round-trip from

C$ 460

One-way from

C$ 260

Popular in

December

Cheapest in

September

Average price

C$ 538
WestJet
  • WestJet
  • 13/6-29/6
  • 4 total stops
  • 40h 00m total
  • Ottawa to Fremont
Search Deals
WestJet
  • WestJet
  • 11/6
  • 2 total stops
  • 12h 30m total
  • Ottawa to Fremont
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Fremont 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 629,999 searches. Data last updated 6 May 2026.
Use the filters below to find and compare flights from Ottawa to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 30/6

6:15 p.m.-9:55 p.m.

2 stops30h 40m

San Francisco

Wed 15/7

6:05 p.m.-5:35 a.m.

1 stop8h 30m

C$ 505
Quickest round-trip

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 25/8

12:25 p.m.-9:55 p.m.

2 stops12h 30m

San Francisco

Wed 26/8

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 537

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 1/7

6:00 a.m.-12:00 p.m.

1 stop9h 00m

San Francisco

Sun 5/7

6:00 a.m.-5:35 a.m.

1 stop20h 35m

C$ 538

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 9/7

6:55 a.m.-8:05 p.m.

2 stops16h 10m

San Francisco

Tue 14/7

6:00 a.m.-7:20 p.m.

1 stop10h 20m

C$ 630

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 21/5

1:20 p.m.-9:55 p.m.

1 stop11h 35m

San Francisco

Fri 29/5

11:59 p.m.-5:35 p.m.

2 stops14h 36m

C$ 630

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Wed 1/7

9:05 a.m.-9:51 p.m.

1 stop15h 46m

San Francisco

Sun 5/7

11:38 p.m.-11:30 a.m.

1 stop8h 52m

C$ 680
Cheapest one-way

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 16/7

12:25 p.m.-9:55 p.m.

2 stops12h 30m

C$ 282

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Thu 25/6

6:55 a.m.-4:40 p.m.

2 stops12h 45m

C$ 289

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Tue 21/7

6:00 a.m.-12:00 p.m.

1 stop9h 00m

C$ 291
Quickest one-way

OttawaSan Francisco

YOW - SFO

YOWSFO

Ottawa

Fri 19/6

7:00 a.m.-12:20 p.m.

1 stop8h 20m

C$ 346

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from Ottawa to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Ottawa 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 Ottawa to Fremont

How much does it cost to fly round-trip from Ottawa to Fremont?

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated 6 May 2026.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andWestJet from Ottawa to Fremont to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
436 reviews
Check prices

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
436 reviews
Porter Airlines
8.0
Very good
436 reviews
Check prices

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,684 reviews
Porter Airlines
8.0
Very good
436 reviews
Check prices

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,331 reviews
Porter Airlines
8.0
Very good
436 reviews
Check prices

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
11,000 reviews
Porter Airlines
8.0
Very good
436 reviews
Check prices

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

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

  • What airport do you fly from for flights from Ottawa to Fremont?

    Ottawa (YOW) is the airport you will fly out of if you book a flight from Ottawa to Fremont. You should not have trouble finding flights to Fremont from Ottawa; the airport handles an average of 0 outbound flights to Fremont per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Ottawa airport to Fremont. It is only a 10.6 km journey to Ottawa (YOW) from Ottawa’s city centre.

  • How long is the flight from Ottawa to Fremont?

    Airlines like WestJet fly from Ottawa to Fremont in about 30h 40m. The time it takes to get you to your destination can typically vary by up to . Ottawa and Fremont are separated by a distance of 3925 km.

  • What are the cheapest airlines to fly from Ottawa to Fremont one-way?

    The cheapest airlines for a one-way flight from Ottawa to Fremont are WestJet (C$ 213), Porter Airlines (C$ 250), and United Airlines (C$ 332).

  • Can I find deals for flights from Ottawa to Fremont that include hotel bookings?

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

  • How can I find direct flights from Ottawa to Fremont?

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

  • Can I find deals for business class flights from Ottawa to Fremont?

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

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to Fremont

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to San Diego flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Toronto Island to Las Vegas flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pearson Intl to Ontario flights
Toronto Island to Los Angeles flights
Hamilton to Las Vegas flights
Toronto Island to San Francisco flights
Hamilton to San Francisco flights
Region of Waterloo Intl to Las Vegas flights
Region of Waterloo Intl to San Francisco flights
Region of Waterloo Intl to Los Angeles flights
Hamilton to Los Angeles flights
Ottawa to Los Angeles flights
Pearson Intl to Sacramento flights
Pierre Elliott Trudeau Intl to San Diego flights
Pearson Intl to San Jose flights
Pierre Elliott Trudeau Intl to Ontario flights
Ottawa to Las Vegas flights
Toronto Island to San Diego flights
Pearson Intl to Santa Ana flights
Hamilton to San Diego flights
Pearson Intl to Palm Springs flights
Ottawa to San Francisco flights
Region of Waterloo Intl to San Jose flights
Pearson Intl to Oakland flights
Pierre Elliott Trudeau Intl to San Jose flights
Region of Waterloo Intl to San Diego flights
Ottawa to San Diego flights
Hamilton to San Jose flights
Pearson Intl to Burbank flights
Pierre Elliott Trudeau Intl to Santa Ana flights
Ottawa to Ontario flights
Windsor to Las Vegas flights
Pierre Elliott Trudeau Intl to Sacramento flights
Pearson Intl to Fresno flights
Hamilton to Ontario flights
Pearson Intl to Long Beach flights
Pearson Intl to Reno flights
Ottawa to Burbank flights
Pierre Elliott Trudeau Intl to Burbank flights
London to Las Vegas flights
Pierre Elliott Trudeau Intl to Palm Springs flights
Ottawa to Santa Ana flights
Pierre Elliott Trudeau Intl to Reno flights

Top 4 airlines flying from Ottawa to Fremont

Discover the top 4 airlines that operate flights from Ottawa to Fremont. 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 629,999 searches. Data last updated 6 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 358AverageC$ 455FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 383AverageC$ 623FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 387AverageC$ 559FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 412AverageC$ 677FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ottawa to Fremont?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Fremont from Ottawa today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Fremont?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Fremont for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ottawa to Fremont with no change fees?

Yes, we can. To see specific flights from Ottawa to Fremont with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ottawa to Fremont become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Fremont from Ottawa today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.