How long is the flight from St. Louis to New Brunswick?

Airlines like Air Canada fly from St. Louis to New Brunswick in about 5h 25m. The time it takes to get you to your destination can typically vary by up to . St. Louis and New Brunswick are separated by a distance of 1306 mi.

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.

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).

What is the cheapest time of day to fly from STL to NB?

When flying from St. Louis to New Brunswick, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$844+ Flights from St. Louis to New Brunswick

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Cheap flight deals from St. Louis to New Brunswick

Best flights from St. Louis to New Brunswick
Discover carefully curated flight deals from St. Louis to New Brunswick that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Sat 1/174:05 pmSTL - YFC

1 stop5h 25mAir Canada

Wed 1/214:15 pmYFC - STL

2 stops25h 14mAir Canada

Deal found 12/13

$844

Thu 1/298:05 amSTL - YFC

2 stops13h 25mUnited Airlines

Thu 2/511:00 amYFC - STL

2 stops12h 13mUnited Airlines

Deal found 12/15

$1,062

Last-minute flights from St. Louis to New Brunswick
Discover last-minute flight deals from St. Louis to New Brunswick. Data last updated December 16, 2025 and is based on user searches.

Sat 1/174:05 pmSTL - YFC

1 stop5h 25mAir Canada

Wed 1/214:15 pmYFC - STL

2 stops25h 14mAir Canada

Deal found 12/15

$844

Thu 1/298:05 amSTL - YFC

2 stops13h 25mUnited Airlines

Thu 2/511:00 amYFC - STL

2 stops12h 13mUnited Airlines

Deal found 12/15

$1,062

Find flight deals from St. Louis to New Brunswick

Round-trip from	$844 (Air Canada)

From Lambert-St Louis to New Brunswick

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Fly to

Route

Depart

Return

Price

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

Sat 1/17

4:05 pm-11:30 pm

1 stop5h 25m

Fredericton

Wed 1/21

4:15 pm-3:29 pm

2 stops25h 14m

$844

St. LouisFredericton

STL - YFC

STLYFC

Lambert-St Louis

Thu 1/29

8:05 am-11:30 pm

2 stops13h 25m

Fredericton

Thu 2/5

11:00 am-9:13 pm

2 stops12h 13m

$1,062

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

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

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

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Related info for your journey

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.
How long is the flight from St. Louis to New Brunswick?
Airlines like Air Canada fly from St. Louis to New Brunswick in about 5h 25m. The time it takes to get you to your destination can typically vary by up to . St. Louis and New Brunswick are separated by a distance of 1306 mi.
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.

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$844+ Cheap flights from St. Louis (STL) to New Brunswick

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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to New Brunswick with Cheapflights

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Cheap flight deals from St. Louis to New Brunswick

Best flights from St. Louis to New BrunswickDiscover carefully curated flight deals from St. Louis to New Brunswick that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Discover carefully curated flight deals from St. Louis to New Brunswick that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Find 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 December 16, 2025.

Round-trip from

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

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Cheapflights Insights

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

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?

How long is the flight from St. Louis to New Brunswick?

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

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

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

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Best flights from St. Louis to New Brunswick
Discover carefully curated flight deals from St. Louis to New Brunswick that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.