To Ottawa

Cheap Flights from Houston to Ottawa

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RatePunk searches hundreds of travel sites at once for deals on flights to Ottawa

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Houston to Ottawa

Explore current cheapest deals departing from Houston to Ottawa

Round trip

Sort by: Cheapest

August 17 - August 24

Cheapest

Best

IAH - Ottawa

$584

$382

Round trip

August 10 - August 24

IAH - Ottawa

$531

$383

Round trip

August 17 - September 2

IAH - Ottawa

$534

$390

Round trip

August 10 - September 2

IAH - Ottawa

$518

$391

Round trip

August 24 - September 2

IAH - Ottawa

$566

$391

Round trip

August 23 - September 2

IAH - Ottawa

$552

$395

Round trip

August 31 - September 2

IAH - Ottawa

$606

$420

Round trip

July 27 - August 10

Earliest

IAH - Ottawa

$497

$439

Round trip

July 27 - August 17

Earliest

IAH - Ottawa

$499

$444

Round trip

August 3 - August 24

IAH - Ottawa

$504

$453

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from Houston to Ottawa

A typical journey from Houston to Ottawa takes about 20h 42m, including connections. Since most itineraries connect at least once, this duration accounts for the time spent during layovers. You can expect to make 2 stopovers on a connecting flight.

For travelers seeking cheap flights from Houston to Ottawa, fares typically range from $558–$1170, with a median of $611. Right now, fares are near the typical level. Only 6% of recent fares were classified as a good price, suggesting that deals are somewhat infrequent for this route. New deals show up several times a week, so setting a price alert can be beneficial.

When is the cheapest time to fly from Houston to Ottawa? The most affordable month to fly is typically May, with a median fare of $304. Other cost-effective months include April, with a median fare of $497, and September, where the median fare is $526. Planning your trip during these months could lead to significant savings.

The distance between Houston and Ottawa is approximately 2418 km, classifying this as a medium-haul route. This means you can expect a journey that is neither very short nor extremely long, typically involving a significant amount of travel time.

How much is a round trip from Houston to Ottawa

Regular price: $423 - $629

Prices for flights from Houston to Ottawa are currently below the regular range.

The regular price range for flights from Houston to Ottawa is between $423 and $629. The current lowest deal is $373 with Frontier Airlines, for travel from July 28 to August 24.

now $373

Low $423

High $629

The cheapest time to fly from Houston to Ottawa

The cheapest month to fly from Houston to Ottawa is May, with a median price of $304. The most expensive month is June, with a median price of $1184. Prices are generally lower from April to November.

May

Cheapest

Flights from $304

June

Most Expensive

Flights from $1,184

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Direct flights from Houston to Ottawa

Frontier Airlines

WestJet

Porter Airlines

JetBlue Airways

Last-minute flights going from Houston to Ottawa

Tue, Jun 16

⌛ Last-Minute

IAH - Ottawa

Houston (IAH) - Ottawa (YOW)

Volaris

$672

$962

One-way

Fri, Jun 19

⌛ Last-Minute

IAH - Ottawa

Houston (IAH) - Ottawa (YOW)

Frontier Airlines

$585

$752

One-way

Fri, Jun 19

⌛ Last-Minute

IAH - Ottawa

Houston (IAH) - Ottawa (YOW)

Frontier Airlines

$675

$789

One-way

Sat, Jun 27

⌛ Last-Minute

IAH - Ottawa

Houston (IAH) - Ottawa (YOW)

Frontier Airlines

$598

$627

One-way

Sun, Jun 28

⌛ Last-Minute

IAH - Ottawa

Houston (IAH) - Ottawa (YOW)

Frontier Airlines

$585

$567

One-way

Wed, Jul 8

⌛ Last-Minute

IAH - Ottawa

Houston (IAH) - Ottawa (YOW)

Frontier Airlines

$554

$471

One-way

Biggest price drops on these dates for flights from Houston to Ottawa

7 nights

Aug 17 - Aug 24

$584 → $382

35%

7 nights

Sep 21 - Sep 28

$666 → $473

29%

2 nights

Aug 31 - Sep 2

$606 → $420

31%

9 nights

Aug 24 - Sep 2

$566 → $391

31%

Popular Airports to fly from Houston to Ottawa

Houston - Ottawa route insights

💸 Price insights

Recent fares are near the typical level

Recent fares for Houston to Ottawa are near the typical level, with a median price of $611.

📅 Best time to fly

Fly in May for the best prices

Historically, May offers the cheapest median price at $304, significantly lower than other months.

⏱️ Flight duration

Connecting flights average 20h 42m

Flights from Houston to Ottawa typically involve connecting flights, with a median duration of 20h 42m.

✈️ Airlines & availability

Connecting flights are common

No direct flights are available. Connecting flights are offered by multiple airlines.

🏆 Airline highlight

Frontier Airlines offers connecting deals

Frontier Airlines has 38 connecting deals, making it a frequent option for this route.

🎯 Booking tip

Consider booking during off-peak months

Booking in May, April, or September could provide better value for your trip.

Houston main airports to depart from

George Bush Intercontinental (IAH)

Cheapest

IAH offers flights to Ottawa, making it a good option for travelers departing from the Houston area.

📍 ~25 km from Houston city center (reachable by car).

💸 Flights from ~$373

William P. Hobby (HOU)

HOU provides another departure choice for flights to Ottawa, serving the Houston metropolitan area.

📍 ~15 km from Houston city center (reachable by car).

💸 Flights from ~$382

Ottawa main airports to arrive at

Ottawa Macdonald–Cartier International (YOW)

Cheapest

Fly into Ottawa Macdonald–Cartier International for direct access to Ottawa from Houston.

📍 ~10 km from city center (reachable by car)

💸 Flights from ~$382

Airports nearby Ottawa used as alternative

Montréal–Pierre Elliott Trudeau International (YUL)

Consider this major international hub for a significantly larger flight network than Ottawa.

📍 ~160 km from destination city (reachable by car)

💸 Flights from ~$414

Ogdensburg International (OGS)

Cheapest

This airport is the closest US option, often providing lower US domestic fares.

📍 ~70 km from destination city (reachable by car)

💸 Flights from ~$218

Plattsburgh International (PBG)

A popular low-cost alternative for US domestic flights, with an easy-to-navigate terminal.

📍 ~170 km from destination city (reachable by car)

💸 Flights from ~$264

Burlington International (BTV)

This full-service US airport offers more carrier variety and reliable connections to major US hubs.

📍 ~230 km from destination city (reachable by car)

💸 Flights from ~$286

Massena International (MSS)

Choose this airport for its very close proximity to the Canadian border and the Ottawa region.

📍 ~90 km from destination city (reachable by car)

💸 Flights from ~$338

Business & First Class Flight Deals to Ottawa

68% AI deal score

Ottawa, Canada

42% AI deal score

$4,415

From IAH

Elite

Jun 22

Ottawa, Canada

42% AI deal score

$5,782

Frequently Asked Questions About Flights to Ottawa

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can also help you discover better deals. Looking into flights with layovers may sometimes offer lower fares than direct routes.

Booking flights in advance often provides more competitive prices, especially for popular routes. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Weekday travel can sometimes be less expensive than weekend travel.

Comparing nearby airports at both your origin and destination can sometimes uncover additional flight options or better prices. While it may add travel time to the airport, the potential savings could be worthwhile. Always consider the total cost and convenience when evaluating this option.

Related routes

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