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$578+ Cheap flights from St. Louis (STL) to New Brunswick

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQM
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from St. Louis to New Brunswick

Keep the following information in mind while searching for St. Louis to New Brunswick flight deals. Data was last updated mayo 1, 2025.

Round-trip from

$892
(Air Canada)

One-way from

$578
(United Airlines)
From Lambert-St Louis to New Brunswick
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One-way flight from Lambert-St Louis to New Brunswick
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Find flight deals from St. Louis to New Brunswick

Cheapest flights from St. Louis to New Brunswick
Explore the most affordable flight options available from St. Louis to New Brunswick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Air Canada deal was found by Cheapflights users on 4/30. 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.
sáb. 6/145:00 amSTL - YFC
2 stops10h 40mAir Canada
sáb. 6/216:30 amYFC - STL
2 stops8h 06mAir Canada
Deal found 4/30$892
This United Airlines deal was found by Cheapflights users on 4/30. 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.
sáb. 6/141:30 pmSTL - YFC
1 stop5h 22mUnited Airlines
sáb. 6/214:30 pmYFC - STL
1 stop5h 28mUnited Airlines
Deal found 4/30$914
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/145:54 pmSTL - YFC
3 stops17h 31mMultiple Airlines
sáb. 6/217:00 amYFC - STL
3 stops36h 04mMultiple Airlines
Deal found 4/30$1,060

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to New Brunswick 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 mayo 1, 2025.
Use the filters below to find and compare flights from St. Louis to New Brunswick that are best for you.

Fly from

St. Louis

Fly to

New Brunswick

Route

Depart

Return

Price

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

sáb. 6/14

5:00 am-5:40 pm

2 stops10h 40m

Fredericton

sáb. 6/21

6:30 am-12:36 pm

2 stops8h 06m

$892

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

sáb. 6/14

1:30 pm-8:52 pm

1 stop5h 22m

Fredericton

sáb. 6/21

4:30 pm-7:58 pm

1 stop5h 28m

$914

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

sáb. 6/14

5:54 pm-1:25 pm

3 stops17h 31m

Fredericton

sáb. 6/21

7:00 am-5:04 pm

3 stops36h 04m

$1,060

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

sáb. 5/10

6:30 am-5:40 pm

2 stops9h 10m

$578

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

sáb. 5/10

7:30 am-11:00 am

1 stop25h 30m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Best time to book a flight from St. Louis to New Brunswick

Have a flexible travel schedule? Discover the best time to fly to New Brunswick from St. Louis 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to New Brunswick

Rainfall in New Brunswick by month

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

In terms of precipitation, rainfall in New Brunswick ranges from 3.0 - 4.2 inches per month. March is typically the wettest month, when rainfall can reach 4.2 in. August is typically the driest time to visit New Brunswick when rainfall is around 3.0 in.

Temperature in New Brunswick by month

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

If weather is an important factor for your trip to New Brunswick, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

Reviews of airlines servicing New Brunswick

Get insights into the airlines that provide service to New Brunswick. 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 New Brunswick. Reviews last updated mayo 1, 2025.
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

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??
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

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??
Air Canada
7.0
Good
9,252 reviews
United Airlines
7.4
Good
8,696 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

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??

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to New Brunswick?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to New Brunswick.

  • Can I find deals for flights from St. Louis to New Brunswick that include hotel bookings?

    Yes. In addition to deals on St. Louis to New Brunswick flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to New Brunswick?

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

  • Can I find deals for business class flights from St. Louis to New Brunswick?

    Yes. Cheapflights offers flight deals from St. Louis to New Brunswick 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

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