$757+ Cheap flights from Bismarck to Decatur, IL (BIS - DEC)
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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — DEC
Oct 18 — Oct 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Bismarck to Decatur with Cheapflights
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 Bismarck to Decatur
Cheapest
Best
Last-minute
Cheapest flights from Bismarck to DecaturExplore the most affordable flight options available from Bismarck to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
Explore the most affordable flight options available from Bismarck to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 9/166:12 pm -
2 stops13h 53m
Wed 10/79:12 am -
2 stops14h 31m
Deal found 9/14![United Airlines logo]()
$777
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/131:40 pm -
2 stops18h 55m
Fri 10/167:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$789
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/141:40 pm -
2 stops18h 55m
Fri 10/167:18 pm -
2 stops17h 43m
Deal found 9/15![United Airlines logo]()
$800
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/125:00 pm -
2 stops25h 43m
Fri 10/169:12 am -
2 stops27h 49m
Deal found 9/15![United Airlines logo]()
$808
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/141:40 pm -
2 stops18h 55m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$843
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/165:00 pm -
2 stops25h 43m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$851
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:00 pm -
2 stops15h 35m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$910
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:00 pm -
2 stops15h 35m
Sun 10/187:18 pm -
2 stops49h 02m
Deal found 9/15![United Airlines logo]()
$1,004
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/139:05 am -
2 stops33h 38m
Sat 10/177:18 pm -
2 stops28h 25m
Deal found 9/15![United Airlines logo]()
$1,027
Best flights from Bismarck to DecaturDiscover carefully curated flight deals from Bismarck to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Bismarck to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 1/155:08 pm -
2 stops24h 43m
Tue 1/196:55 pm -
2 stops25h 15m
Deal found 9/15![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 1/155:08 pm -
2 stops24h 43m
Sun 1/179:42 am -
2 stops14h 09m
Deal found 9/15![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 1/121:08 pm -
2 stops19h 38m
Sun 1/179:42 am -
2 stops10h 28m
Deal found 9/15![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 1/135:40 am -
2 stops12h 11m
Mon 1/186:55 pm -
2 stops28h 56m
Deal found 9/15![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 1/115:08 pm -
2 stops24h 43m
Sat 1/166:55 pm -
2 stops17h 24m
Deal found 9/15![United Airlines logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/141:40 pm -
2 stops18h 55m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$843
Last-minute flights from Bismarck to DecaturDiscover last-minute flight deals from Bismarck to Decatur. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Decatur. Data last updated September 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/125:00 pm -
2 stops25h 43m
Fri 10/169:12 am -
2 stops27h 49m
Deal found 9/15![United Airlines logo]()
$808
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/131:40 pm -
2 stops18h 55m
Fri 10/167:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$789
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/139:05 am -
2 stops33h 38m
Sat 10/177:18 pm -
2 stops28h 25m
Deal found 9/15![United Airlines logo]()
$1,027
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/141:40 pm -
2 stops18h 55m
Fri 10/167:18 pm -
2 stops17h 43m
Deal found 9/15![United Airlines logo]()
$800
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/141:40 pm -
2 stops18h 55m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$843
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:00 pm -
2 stops15h 35m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$910
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:00 pm -
2 stops15h 35m
Sun 10/187:18 pm -
2 stops49h 02m
Deal found 9/15![United Airlines logo]()
$1,004
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/165:00 pm -
2 stops25h 43m
Mon 10/197:18 pm -
2 stops25h 02m
Deal found 9/15![United Airlines logo]()
$851
Find flight deals from Bismarck to Decatur
Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) to Decatur (DEC). 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 September 18, 2026.
Round-trip from | $757 (United Airlines) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Bismarck to Decatur 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 7,457,451 searches. Data last updated September 18, 2026.
Use the filters below to find and compare flights from Bismarck to Decatur that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BismarckDecatur
BIS Bismarck - DEC Decatur Arpt
BISDEC
Bismarck
Fri 1/15
5:08 pm-5:51 pm
2 stops24h 43m
Decatur Arpt
Tue 1/19
6:55 pm-8:10 pm
2 stops25h 15m
$757
BismarckDecatur
BIS Bismarck - DEC Decatur Arpt
BISDEC
Bismarck
Fri 1/15
5:08 pm-5:51 pm
2 stops24h 43m
Decatur Arpt
Sun 1/17
9:42 am-11:51 pm
2 stops14h 09m
$757
Quickest round-trip
BismarckDecatur
BIS Bismarck - DEC Decatur Arpt
BISDEC
Bismarck
Tue 1/12
1:08 pm-8:46 am
2 stops19h 38m
Decatur Arpt
Sun 1/17
9:42 am-8:10 pm
2 stops10h 28m
$757
BismarckDecatur
BIS Bismarck - DEC Decatur Arpt
BISDEC
Bismarck
Wed 1/13
5:40 am-5:51 pm
2 stops12h 11m
Decatur Arpt
Mon 1/18
6:55 pm-11:51 pm
2 stops28h 56m
$757
BismarckDecatur
BIS Bismarck - DEC Decatur Arpt
BISDEC
Bismarck
Mon 1/11
5:08 pm-5:51 pm
2 stops24h 43m
Decatur Arpt
Sat 1/16
6:55 pm-12:19 pm
2 stops17h 24m
$757
BismarckDecatur
BIS Bismarck - DEC Decatur Arpt
BISDEC
Bismarck
Wed 10/14
1:40 pm-8:35 am
2 stops18h 55m
Decatur Arpt
Mon 10/19
7:18 pm-8:20 pm
2 stops25h 02m
$843
Sorted by cheapest first
Best time to book a flight from Bismarck to Decatur
Have a flexible travel schedule? Discover the best time to fly to Decatur from Bismarck with our price prediction graph.
BIS-DEC
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 Bismarck to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Decatur?
Book flights to Decatur if you plan to visit one of these locationsMattoon
Effingham
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Decatur flight routes
Flights by cabin class
Other flight options
Other flights from Bismarck
Popular flights