$749+ Cheap flights from Saint John (YSJ) to Denver (DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — DEN
Jan 17 — Jan 241
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St John to Denver
Best flights from St John to DenverDiscover 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 18, 2025.
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 18, 2025.
This Air Canada deal was found by Cheapflights users on 12/16. 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 1/1811:30 amYSJ - DEN
1 stop8h 10mAir Canada
Tue 1/207:15 pmDEN - YSJ
2 stops12h 24mAir Canada
Deal found 12/16![Air Canada logo]()
$749
This United Airlines deal was found by Cheapflights users on 12/14. 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 1/185:40 amYSJ - DEN
2 stops19h 20mUnited Airlines
Tue 1/208:25 pmDEN - YSJ
2 stops16h 15mUnited Airlines
Deal found 12/14![United Airlines logo]()
$761
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 18, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $740 (Air Canada) |
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 18, 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
Sun 1/18
11:30 am-4:40 pm
1 stop8h 10m
Denver Intl
Tue 1/20
7:15 pm-10:39 am
2 stops12h 24m
$749
Saint JohnDenver
YSJ - DEN
YSJDEN
Saint John
Sun 1/18
5:40 am-10:00 pm
2 stops19h 20m
Denver Intl
Tue 1/20
8:25 pm-3:40 pm
2 stops16h 15m
$761
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- 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.
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