How do most travelers feel about United Airlines?

United Airlines has received a 7.4/10 rating from 642 Cheapflights user reviews. If you wish to plan your next trip from Ottawa to London Heathrow Airport with United Airlines, enter your preferred travel dates above!

Can I get a flight from Ottawa to London Heathrow Airport on United Airlines for under C$ 800?

There are 1 flights available on United Airlines from Ottawa to London Heathrow Airport for under C$ 800. These prices can change based on many factors including date and time. To find YOW-LHR flight prices for your dates, click here.

C$ 631+ United Airlines Flights from Ottawa to Heathrow - Compare & Save Big

Cheapflights users flying from Ottawa to London on United Airlines typically fly into London Heathrow and depart from Ottawa. Select your dates above for pricing.

United Airlines flights from Ottawa to Heathrow in 2025

One-way from	C$ 631
Round-trip from	C$ 901
Popular in	December
Cheapest in	February
Average price (all airlines)	C$ 991

United Airlines
4/7
2 total stops
24h 25m total
Ottawa to London

Search Deals

United Airlines
16/5-31/5
4 total stops
52h 03m total
Ottawa to London

Search Deals

Highest demand for flights from Ottawa to London Heathrow; 5% potential price increase.

Search Deals

Best time to find cheap flights from Ottawa to London Heathrow; 2% potential price drop.

Search Deals

Average price for all Ottawa to London Heathrow flights (one-way and round-trip).

Search Deals

Can I get a flight from Ottawa to London Heathrow Airport on United Airlines for under C$ 800?
There are 1 flights available on United Airlines from Ottawa to London Heathrow Airport for under C$ 800. These prices can change based on many factors including date and time. To find YOW-LHR flight prices for your dates, click here.
How do most travelers feel about United Airlines?
United Airlines has received a 7.4/10 rating from 642 Cheapflights user reviews. If you wish to plan your next trip from Ottawa to London Heathrow Airport with United Airlines, enter your preferred travel dates above!

Find United Airlines flight deals from Ottawa to Heathrow

Cheapest United Airlines flights from Ottawa to Heathrow
Explore the most affordable United Airlines flight options available from Ottawa to Heathrow. Find the lowest fares with prices last updated on 30 April 2025.

Fri 16/56:30 a.m.YOW - LHR

2 stops20h 50mUnited Airlines

Sat 31/57:45 a.m.LHR - YOW

2 stops31h 13mUnited Airlines

Deal found 29/4C$ 901

Best United Airlines flights from Ottawa to Heathrow
Discover carefully curated United Airlines flight deals from Ottawa to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 April 2025.

Fri 16/56:30 a.m.YOW - LHR

2 stops20h 50mUnited Airlines

Sat 31/57:45 a.m.LHR - YOW

2 stops31h 13mUnited Airlines

Deal found 29/4C$ 901

Travel insights for United Airlines flights from Ottawa to Heathrow

Get recent, data-driven insights about United Airlines flights from Ottawa to Heathrow including ideal travel times, pricing trends, and more.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Best time to book a flight from Ottawa to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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.

Browse thousands of different options on Cheapflights for your next trip

See what others are saying about United Airlines

United Airlines

7.4

Good

8,696 reviews

Check prices

Overview

Recent reviews

4.0

Mediocre|Apr 2025

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

4.0

Mediocre|Mar 2025

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

2.0

Poor|Mar 2025

The seats are way too stiff.

4.0

Mediocre|Feb 2025

The food was inedible! We are in the food business and aren’t sure who got this contract. But prisoners eat better. The food was so bad. I ate just a small amount and it made me nauseous. Everything is over microwaved too. And what is with the options? Vegan and vegetarian, but no keto or carnivore? I get that may be more expensive. But I’d gladly pay if it even was an option. But it’s not. There are many fresh options that could have been offered that don’t have to be heated too!

2.0

Poor|Jan 2025

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

1 out of 2899

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.

United Airlines flights from Ottawa to London Heathrow Airport (YOW - LHR)

Cheapflights users flying from Ottawa to London on United Airlines typically fly into London Heathrow and depart from Ottawa. Select your dates above for pricing.

United Airlines flights from Ottawa to Heathrow in 2025

Find detailed information about United Airlines flights from Ottawa to Heathrow. Explore the options provided by United Airlines to plan your journey from Ottawa to Heathrow. Data last updated 30 April 2025.

One-way from

Round-trip from

Popular in

Cheapest in

Average price (all airlines)

Can I get a flight from Ottawa to London Heathrow Airport on United Airlines for under C$ 800?

How do most travelers feel about United Airlines?

Find United Airlines flight deals from Ottawa to Heathrow

Cheapest United Airlines flights from Ottawa to HeathrowExplore the most affordable United Airlines flight options available from Ottawa to Heathrow. Find the lowest fares with prices last updated on 30 April 2025.

Explore the most affordable United Airlines flight options available from Ottawa to Heathrow. Find the lowest fares with prices last updated on 30 April 2025.

Travel insights for United Airlines flights from Ottawa to Heathrow

Get recent, data-driven insights about United Airlines flights from Ottawa to Heathrow including ideal travel times, pricing trends, and more.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Best time to book a flight from Ottawa to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Ottawa with our price prediction graph.

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.

Fly from Ottawa to Heathrow on another airline

Consider alternative airlines that service the Heathrow area. Flight routes are based on user searches made on Cheapflights and were last updated on 30 April 2025.

See what others are saying about United Airlines

Overview

100% Free

Book with Flexibility

Travel Smart

Cheapest United Airlines flights from Ottawa to Heathrow
Explore the most affordable United Airlines flight options available from Ottawa to Heathrow. Find the lowest fares with prices last updated on 30 April 2025.