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$304+ Cheap flights from Saint John (YSJ) to Denver (DEN)

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — DEN
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from St John to Denver

Best flights from St John to Denver
Discover carefully curated flight deals from St John to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/224:15 pmYSJ - DEN
2 stops19h 34mUnited Airlines
Mon 1/268:25 pmDEN - YSJ
2 stops16h 15mUnited Airlines
Deal found 12/21$802
This Air Canada deal was found by Cheapflights users on 12/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/225:40 amYSJ - DEN
2 stops15h 27mAir Canada
Mon 1/265:30 pmDEN - YSJ
1 stop14h 09mAir Canada
Deal found 12/22$838
This Air Canada deal was found by Cheapflights users on 12/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:35 amYSJ - DEN
1 stop9h 26mMultiple Airlines
Sun 5/179:48 amDEN - YSJ
2 stops11h 04mMultiple Airlines
Deal found 12/22$1,025
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:30 pmYSJ - DEN
2 stops26h 26mUnited Airlines
Sat 5/168:34 pmDEN - YSJ
2 stops16h 06mUnited Airlines
Deal found 12/22$831
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:30 pmYSJ - DEN
2 stops26h 26mUnited Airlines
Sun 5/176:15 amDEN - YSJ
2 stops14h 37mUnited Airlines
Deal found 12/22$835
This Air Canada deal was found by Cheapflights users on 12/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:35 amYSJ - DEN
1 stop9h 26mMultiple Airlines
Sat 5/164:13 pmDEN - YSJ
1 stop16h 14mMultiple Airlines
Deal found 12/22$1,054

Find flight deals from St John to Denver

Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to Denver (DEN). 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 December 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$802
(United Airlines)

One-way from

$304
(Kiwi.com)
Provider with most accurate pricing for Saint John-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Saint John-Denver Intl flights.
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From Saint John to Denver Intl
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One-way flight from Saint John to Denver Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St John to Denver 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 December 23, 2025.
Use the filters below to find and compare flights from Saint John to Denver that are best for you.

Fly from

St John

Fly to

Denver

Route

Depart

Return

Price

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Thu 1/22

4:15 pm-8:49 am

2 stops19h 34m

Denver Intl

Mon 1/26

8:25 pm-3:40 pm

2 stops16h 15m

$802

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Sun 5/10

4:30 pm-3:56 pm

2 stops26h 26m

Denver Intl

Sat 5/16

8:34 pm-3:40 pm

2 stops16h 06m

$831

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Sun 5/10

4:30 pm-3:56 pm

2 stops26h 26m

Denver Intl

Sun 5/17

6:15 am-11:52 pm

2 stops14h 37m

$835

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Thu 1/22

5:40 am-6:07 pm

2 stops15h 27m

Denver Intl

Mon 1/26

5:30 pm-10:39 am

1 stop14h 09m

$838

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Sun 5/10

5:35 am-12:01 pm

1 stop9h 26m

Denver Intl

Sun 5/17

9:48 am-11:52 pm

2 stops11h 04m

$1,025

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Sun 5/10

5:35 am-12:01 pm

1 stop9h 26m

Denver Intl

Sat 5/16

4:13 pm-11:27 am

1 stop16h 14m

$1,054

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Thu 2/5

12:00 pm-10:32 am

3 stops49h 32m

$304

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Thu 2/5

5:40 am-10:23 am

1 stop7h 43m

$432

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Sun 5/10

4:30 pm-3:56 pm

2 stops26h 26m

$446

Saint JohnDenver

YSJ - DEN

YSJDEN

Saint John

Sun 5/10

5:35 am-12:01 pm

1 stop9h 26m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Compare providers for flights from St John to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St John to Denver in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Saint John-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Saint John-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Saint John-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Saint John-Denver flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Saint John-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St John to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from St John 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.

Related info for your journey

Find useful and relevant information for your journey from St John to Denver. 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 Saint John to Denver?

    Departing from Saint John to Denver will take you 15h 27m. The distance from Saint John to Denver is about 1987 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from St John to Denver?

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

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

    Yes. Cheapflights offers flight deals from St John to Denver 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
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