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Cheap flights from Denver (DEN) to Ottawa (YOW) from $235

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 7/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
DEN — YOW
Apr 30 — May 71
From?
To?
Tue 4/30
Tue 5/7
1 adult, Economy
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The best prices from Denver Intl to Ottawa are usually found in May or January, booked 26 days in advance, depart on a Friday or Wednesday and return on a Thursday

Cheap flight deals from Denver to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Ottawa (YOW). 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 April 25, 2024.

Popular in

September

Cheapest in

May

Round-trip from

$283

One-way from

$235
High demand for flights, 15% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Denver Intl to Ottawa
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One-way flight from Denver Intl to Ottawa
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What is the cheapest day to fly round-trip from Denver to Ottawa?

Monday flights are found to be more expensive to fly from Denver to Ottawa. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ottawa.

How far in advance should I book a flight from Denver to Ottawa?

To save on the cost of your flight from Denver to Ottawa, book at least 27 days before your planned departure. Booking around this time can save you about 178% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $518 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,253.

What is the cheapest month to fly from Denver to Ottawa?

Flights from Denver to Ottawa lean towards being more expensive in September. Prices are generally better when you fly from Denver to Ottawa in May, with the cheapest ticket starting at $279.

When is the cheapest time to fly from Denver to Ottawa (DEN - YOW)?

A simple way to save on the total cost of your ticket is to fly from Denver to Ottawa at noon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

Cheap Air Canada flights from Denver to Ottawa

Explore cheap flight options specifically provided by Air Canada for the route between Denver and Ottawa. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Take a look at some of the lowest-priced Air Canada flights heading from Denver to Ottawa. Be sure to come back soon if the deals available don't appeal to you at this time.
Mon 5/67:00 pmDEN - YOW
1 stop9h 21mAir Canada
Mon 5/135:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/24$542
Tue 5/147:00 pmDEN - YOW
1 stop9h 21mAir Canada
Fri 5/179:45 pmYOW - DEN
1 stop16h 46mAir Canada
Deal found 4/24$561
Mon 5/135:34 pmDEN - YOW
1 stop5h 58mAir Canada
Wed 5/155:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/23$571
Thu 6/277:45 amDEN - YOW
1 stop9h 28mAir Canada
Mon 8/59:00 pmYOW - DEN
1 stop14h 56mAir Canada
Deal found 4/24$587
Thu 5/238:56 pmDEN - YOW
1 stop17h 40mAir Canada
Tue 5/285:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/24$624
Thu 5/238:56 pmDEN - YOW
1 stop17h 40mAir Canada
Tue 5/285:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/25$629
Mon 5/135:34 pmDEN - YOW
1 stop5h 58mAir Canada
Wed 5/159:30 amYOW - DEN
2 stops8h 54mAir Canada
Deal found 4/23$654

Cheap United Airlines flights from Denver to Ottawa

Explore cheap flight options specifically provided by United Airlines for the route between Denver and Ottawa. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Have a look at some of the cheapest available United Airlines flights departing from Denver and landing in Ottawa. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 5/16:00 amDEN - YOW
1 stop8h 37mUnited Airlines
Fri 5/105:55 pmYOW - DEN
1 stop8h 04mUnited Airlines
Deal found 4/24$557
Wed 10/166:00 amDEN - YOW
1 stop15h 49mUnited Airlines
Thu 10/247:30 pmYOW - DEN
2 stops13h 17mUnited Airlines
Deal found 4/23$605
Wed 10/165:00 amDEN - YOW
2 stops9h 39mUnited Airlines
Thu 10/247:30 pmYOW - DEN
2 stops13h 17mUnited Airlines
Deal found 4/23$653
Wed 5/18:32 pmDEN - YOW
2 stops15h 40mUnited Airlines
Fri 5/105:55 pmYOW - DEN
1 stop8h 04mUnited Airlines
Deal found 4/24$674
Mon 5/66:00 amDEN - YOW
2 stops8h 37mUnited Airlines
Mon 5/135:24 pmYOW - DEN
1 stop7h 55mUnited Airlines
Deal found 4/24$891

Cheap Denver to Ottawa flights in April & May 2024

Find cheap flight options from Denver to Ottawa specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 25, 2024.
Scroll through some of the best deals on flights from Denver to Ottawa in 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/143:21 pmDEN - YOW
2 stops18h 21mMultiple Airlines
Fri 5/175:10 pmYOW - DEN
2 stops15h 43mMultiple Airlines
Deal found 4/24$418
Tue 5/143:21 pmDEN - YOW
2 stops18h 21mMultiple Airlines
Fri 5/178:50 amYOW - DEN
1 stop18h 25mMultiple Airlines
Deal found 4/24$492
Mon 5/67:00 pmDEN - YOW
1 stop9h 21mAir Canada
Mon 5/135:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/24$542
Mon 5/67:00 pmDEN - YOW
1 stop9h 21mAir Canada
Mon 5/132:00 pmYOW - DEN
1 stop8h 26mAir Canada
Deal found 4/25$548
Wed 5/16:00 amDEN - YOW
1 stop8h 37mUnited Airlines
Fri 5/105:55 pmYOW - DEN
1 stop8h 04mUnited Airlines
Deal found 4/24$557
Tue 5/147:00 pmDEN - YOW
1 stop9h 21mAir Canada
Fri 5/179:45 pmYOW - DEN
1 stop16h 46mAir Canada
Deal found 4/24$561
Mon 5/135:34 pmDEN - YOW
1 stop5h 58mAir Canada
Wed 5/155:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/23$571
Mon 5/1312:53 amDEN - YOW
2 stops12h 59mMultiple Airlines
Fri 5/1712:00 pmYOW - DEN
1 stop15h 15mMultiple Airlines
Deal found 4/24$578
Thu 5/238:56 pmDEN - YOW
1 stop17h 40mAir Canada
Tue 5/285:55 amYOW - DEN
1 stop6h 35mAir Canada
Deal found 4/24$624

Denver to Ottawa 2024 flight deals

Discover exclusive flight deals for travel between Denver and Ottawa in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Scroll through some of the best deals on flights from Denver to Ottawa in 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/143:21 pmDEN - YOW
2 stops18h 21mMultiple Airlines
Fri 5/175:10 pmYOW - DEN
2 stops15h 43mMultiple Airlines
Deal found 4/24$418
Tue 6/44:16 pmDEN - YOW
1 stop17h 26mMultiple Airlines
Sat 6/1510:00 amYOW - DEN
2 stops14h 41mMultiple Airlines
Deal found 4/24$444
Tue 6/44:16 pmDEN - YOW
1 stop17h 26mMultiple Airlines
Sat 6/154:15 pmYOW - DEN
1 stop17h 44mMultiple Airlines
Deal found 4/24$458
Mon 6/312:07 amDEN - YOW
1 stop15h 20mMultiple Airlines
Sat 6/1510:00 amYOW - DEN
2 stops14h 41mMultiple Airlines
Deal found 4/24$483
Tue 9/1011:56 pmDEN - YOW
2 stops15h 31mMultiple Airlines
Tue 9/174:15 pmYOW - DEN
1 stop9h 39mMultiple Airlines
Deal found 4/24$487
Wed 8/142:20 pmDEN - YOW
1 stop8h 17mWestJet
Fri 8/238:15 pmYOW - DEN
1 stop19h 17mWestJet
Deal found 4/24$489
Wed 8/142:20 pmDEN - YOW
1 stop8h 17mWestJet
Fri 8/233:25 pmYOW - DEN
2 stops24h 07mWestJet
Deal found 4/24$490
Tue 5/143:21 pmDEN - YOW
2 stops18h 21mMultiple Airlines
Fri 5/178:50 amYOW - DEN
1 stop18h 25mMultiple Airlines
Deal found 4/24$492
Mon 6/312:07 amDEN - YOW
1 stop15h 20mMultiple Airlines
Sat 6/154:15 pmYOW - DEN
1 stop17h 44mMultiple Airlines
Deal found 4/24$498

Denver to Ottawa flights leaving soon

Find last-minute flight options from Denver to Ottawa for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Have a look at some of the flights available from Denver to Ottawa departing last-minute. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 5/16:00 amDEN - YOW
1 stop8h 37mUnited Airlines
Fri 5/105:55 pmYOW - DEN
1 stop8h 04mUnited Airlines
Deal found 4/24$557
Wed 5/18:32 pmDEN - YOW
2 stops15h 40mUnited Airlines
Fri 5/105:55 pmYOW - DEN
1 stop8h 04mUnited Airlines
Deal found 4/24$674
Wed 5/16:45 amDEN - YOW
2 stops15h 59mMultiple Airlines
Fri 5/106:00 amYOW - DEN
2 stops14h 55mMultiple Airlines
Deal found 4/24$923
Tue 4/3012:21 amDEN - YOW
1 stop14h 46mMultiple Airlines
Fri 5/107:30 pmYOW - DEN
2 stops25h 12mMultiple Airlines
Deal found 4/24$934
Tue 4/3012:21 amDEN - YOW
1 stop14h 46mMultiple Airlines
Fri 5/104:15 pmYOW - DEN
1 stop25h 39mMultiple Airlines
Deal found 4/24$1,089

One-way flights to Ottawa from Denver

Search for one-way flight options from Denver to Ottawa. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,701 searches. Data last updated April 25, 2024.
Some of the best available deals we've found on one-way flights from Denver to Ottawa. Those seeking round-trip flights from Denver to Ottawa should utilize the search form at the the top of the page.
Thu 7/186:30 amDEN - YOW
1 stop30h 45mMultiple Airlines
Deal found 4/24$235
Wed 7/1712:59 amDEN - YOW
1 stop14h 28mMultiple Airlines
Deal found 4/24$272
Thu 7/189:45 amDEN - YOW
2 stops12h 52mMultiple Airlines
Deal found 4/24$276
Thu 7/1810:49 pmDEN - YOW
3 stops11h 50mMultiple Airlines
Deal found 4/24$416

Find flights from Denver to Ottawa within your budget

Customize your flight search to find flights from Denver to Ottawa 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 3,068,701 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$418 - $605

Route

Depart

Return

Price

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 5/14

2 stops18h 21m

Ottawa

Fri 5/17

2 stops15h 43m

$418

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 6/4

1 stop17h 26m

Ottawa

Sat 6/15

2 stops14h 41m

$444

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 6/4

1 stop17h 26m

Ottawa

Sat 6/15

1 stop17h 44m

$458

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 8/14

1 stop8h 17m

Ottawa

Fri 8/23

1 stop19h 17m

$489

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 8/14

1 stop8h 17m

Ottawa

Fri 8/23

2 stops24h 07m

$490

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 8/14

2 stops21h 53m

Ottawa

Fri 8/23

2 stops24h 07m

$517

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 5/6

1 stop9h 21m

Ottawa

Mon 5/13

1 stop6h 35m

$542

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Tue 5/14

1 stop9h 21m

Ottawa

Fri 5/17

1 stop16h 46m

$561

Denver IntlOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 10/16

1 stop15h 49m

Ottawa

Thu 10/24

2 stops13h 17m

$605

Flights are sorted by cheapest first

Deals found on 4/24

When is the best time to book a flight from Denver to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Ottawa. Price data was last updated on January 28, 2024.
The best time to book flights from Denver to Ottawa is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Denver to Ottawa?

Use this chart to determine the cheapest time to fly round-trip from Denver to Ottawa. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Denver to Ottawa flight should consider departing on Sunday afternoons when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Ottawa by month

Plan your trip from Denver to Ottawa by taking into account the cheapest months to travel. The average price of a one-way flight from Denver to Ottawa is currently $300 while a round-trip flight costs $503. Price data was last updated on April 21, 2024.

Currently, January is the cheapest month in which you can book a flight from Denver to Ottawa (average of $283). Flying from Denver to Ottawa in July is currently the most expensive (average of $490). 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.

January

$283

February

$350

March

$345

April

$313

May

$382

June

$384

July

$490

August

$446

September

$456

October

$360

November

$312

December

$339

Temperature and rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature and rainfall totals by month.

YOW

Temperature

14 - 69.8 °F

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated April 25, 2024.
Read through reviews of airlines operating flights from Denver to Ottawa, such as Air Canada, United Airlines and WestJet. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.5
Good
2,985 reviews
Check prices

Crew

8.2

Entertainment

6.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Food

6.5

Reviews

1 / 10

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.

WestJet
7.5
Good
2,985 reviews
WestJet
7.5
Good
2,985 reviews
Check prices

Crew

8.2

Entertainment

6.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Food

6.5

Reviews

1 / 10

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.

United Airlines
7.4
Good
11,255 reviews
WestJet
7.5
Good
2,985 reviews
Check prices

Crew

8.2

Entertainment

6.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Food

6.5

Reviews

1 / 10

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.

Air Canada
7.0
Good
6,857 reviews
WestJet
7.5
Good
2,985 reviews
Check prices

Crew

8.2

Entertainment

6.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Food

6.5

Reviews

1 / 10

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.

Related info for your journey

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

  • Can I find flights from Denver to Ottawa for under $500 on Cheapflights?

    Yes, there are multiple flights from Denver to Ottawa for under $500. The cheapest flight booked recently is on Multiple Airlines for just $418, but on average you can expect to pay $520.

  • Are there last-minute flights available from Denver to Ottawa for under $600?

    There are currently 5+ open flights from Denver to Ottawa within the next 7 days for less than $600.

  • What are the cheapest airlines flying from Denver to Ottawa round-trip?

    Our cheapest airline available from Denver to Ottawa is WestJet. Our recent data shows that you can find tickets from as low as $489 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $542 and $605 round-trip. WestJet is priced at 32% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular airlines that fly from Denver to Ottawa?

    When booking a flight from Denver to Ottawa, you may want to consider flying on Air Canada, United Airlines or WestJet as they are the most popular for this route.

  • What does DEN to YOW mean?

    DEN and YOW are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. DEN to YOW refers to a flight route from Denver Intl Airport to Ottawa Airport.

  • Can I find deals for flights from Denver to Ottawa that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to Ottawa flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Denver to Ottawa with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to Ottawa flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Denver to Ottawa that allow pets onboard?

    Many airlines flying from Denver to Ottawa offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Denver to Ottawa?

    Yes, you can often find last-minute deals on Denver to Ottawa flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Denver to Ottawa flight deals updated?

    The Denver to Ottawa flight deals you see on this page were last updated on 4/24.

See more FAQs

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Alternative routes for Denver to Ottawa
See prices for flight routes from nearby airports that may be better suited for you.

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Top 3 airlines flying from Denver to Ottawa

Discover the top 3 airlines that operate flights from Denver to Ottawa. 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 3,068,701 searches. Data last updated April 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$269Average$661FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$342Average$705FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapest$540Average$564FlexibilityNo cancel feeOn-time60%
Search WestJet flights
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Search flights from Denver to Ottawa by cabin class

Find flights from Denver to Ottawa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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

When you search for this flight from Denver to Ottawa, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Denver to Ottawa by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Denver to Ottawa, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Denver to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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