$88+ Cheap flights from Illinois to New Hampshire
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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MHT
Sep 7 — Sep 141
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to New Hampshire 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
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Cheapest flights from Illinois to New HampshireExplore the most affordable flight options available from Illinois to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 8, 2026.
Explore the most affordable flight options available from Illinois to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 8, 2026.
This Frontier deal was found by Cheapflights users on 8/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:44 pm -
1 stop12h 25m
Tue 9/812:45 pm -
1 stop8h 23m
Deal found 8/3![Frontier logo]()
$166
This Super.com deal was found by Cheapflights users on 8/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:50 pm -
1 stop17h 32m
Tue 9/1512:52 pm -
1 stop6h 31m
Deal found 8/3![Frontier logo]()
$172
This Trip.com deal was found by Cheapflights users on 8/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:50 pm -
1 stop18h 01m
Mon 9/1412:54 pm -
1 stop6h 29m
Deal found 8/4![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:44 pm -
1 stop12h 25m
Sun 9/612:45 pm -
1 stop8h 19m
Deal found 8/7![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:59 pm -
1 stop14h 10m
Sun 9/612:45 pm -
1 stop8h 19m
Deal found 8/4![Frontier logo]()
$182
This CheapTickets deal was found by Cheapflights users on 8/5. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:50 pm -
1 stop18h 08m
Sat 9/2612:54 pm -
1 stop6h 29m
Deal found 8/5![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:33 pm -
1 stop12h 19m
Tue 10/2712:35 pm -
1 stop8h 09m
Deal found 8/7![Frontier logo]()
$186
This Priceline deal was found by Cheapflights users on 8/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:24 pm -
Nonstop2h 45m
Thu 9/1012:54 pm -
1 stop6h 29m
Deal found 8/4![Multiple Airlines logo]()
$187
This Trip.com deal was found by Cheapflights users on 8/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:50 pm -
1 stop18h 08m
Fri 9/1811:36 am -
1 stop12h 23m
Deal found 8/5![Frontier logo]()
$190
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:25 am -
Nonstop2h 20m
Tue 9/1510:05 am -
Nonstop2h 30m
Deal found 8/4![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
Nonstop2h 25m
Sat 9/267:05 am -
Nonstop2h 35m
Deal found 8/4![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:40 am -
2 stops6h 20m
Sat 9/197:05 am -
Nonstop2h 35m
Deal found 8/4![Southwest logo]()
$222
Best flights from Illinois to New HampshireDiscover carefully curated flight deals from Illinois to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
Discover carefully curated flight deals from Illinois to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:40 pm -
Nonstop2h 41m
Tue 10/137:40 pm -
Nonstop2h 51m
Deal found 8/4![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
Nonstop2h 25m
Sat 9/267:05 am -
Nonstop2h 35m
Deal found 8/4![Southwest logo]()
$217
This JetBlue deal was found by Cheapflights users on 8/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:38 am -
Nonstop2h 28m
Wed 10/215:00 pm -
Nonstop3h 22m
Deal found 8/6![JetBlue logo]()
$231
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 10/176:10 am -
Nonstop2h 24m
Sat 10/245:45 am -
1 stop4h 52m
Deal found 8/7![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 8/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:50 pm -
Nonstop2h 28m
Mon 9/1412:13 pm -
Nonstop2h 53m
Deal found 8/7![American Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 8/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:10 pm -
Nonstop2h 10m
Sun 9/68:50 am -
Nonstop2h 20m
Deal found 8/5![Southwest logo]()
$235
This JetBlue deal was found by Cheapflights users on 8/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:38 am -
Nonstop2h 28m
Sun 9/135:15 am -
1 stop5h 43m
Deal found 8/3![JetBlue logo]()
$240
This United Airlines deal was found by Cheapflights users on 8/8. 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 10/16:10 am -
Nonstop2h 23m
Fri 10/26:43 pm -
Nonstop2h 57m
Deal found 8/8![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 8/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:40 am -
Nonstop2h 20m
Tue 9/221:20 pm -
2 stops6h 45m
Deal found 8/3![Southwest logo]()
$237
This JetBlue deal was found by Cheapflights users on 8/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:00 pm -
1 stop6h 49m
Sat 10/315:00 pm -
Nonstop3h 12m
Deal found 8/7![JetBlue logo]()
$248
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/259:24 pm -
Nonstop2h 30m
Mon 9/287:55 am -
Nonstop2h 56m
Deal found 8/7![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/183:50 pm -
1 stop4h 50m
Wed 11/2510:25 pm -
Nonstop2h 50m
Deal found 8/6![Southwest logo]()
$241
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:22 am -
2 stops10h 51m
Sat 9/56:10 am -
2 stops11h 41m
Deal found 8/7![Delta logo]()
$292
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/259:24 pm -
Nonstop2h 30m
Sun 10/47:01 am -
Nonstop2h 59m
Deal found 8/7![United Airlines logo]()
$255
This JetBlue deal was found by Cheapflights users on 8/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:38 am -
Nonstop2h 28m
Mon 10/263:59 pm -
1 stop8h 45m
Deal found 8/5![JetBlue logo]()
$260
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/255:00 am -
1 stop4h 33m
Sun 1/177:00 am -
1 stop7h 57m
Deal found 8/6![American Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:55 am -
1 stop7h 25m
Sun 10/2510:50 pm -
Nonstop2h 35m
Deal found 8/4![Southwest logo]()
$251
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/213:35 pm -
Nonstop2h 44m
Thu 9/248:31 pm -
Nonstop2h 58m
Deal found 8/7![United Airlines logo]()
$255
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am -
1 stop6h 12m
Sat 10/3112:43 pm -
1 stop7h 37m
Deal found 8/5![Delta logo]()
$309
This JetBlue deal was found by Cheapflights users on 8/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:20 pm -
Nonstop2h 31m
Tue 8/2512:44 pm -
1 stop5h 51m
Deal found 8/3![JetBlue logo]()
$262
This American Airlines deal was found by Cheapflights users on 8/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/142:30 pm -
1 stop5h 29m
Mon 1/186:00 am -
2 stops8h 57m
Deal found 8/7![American Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 8/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:15 pm -
2 stops7h 35m
Mon 11/167:10 am -
Nonstop2h 45m
Deal found 8/5![Southwest logo]()
$256
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:17 am -
2 stops8h 43m
Tue 9/151:59 pm -
1 stop6h 16m
Deal found 8/5![Delta logo]()
$314
This JetBlue deal was found by Cheapflights users on 8/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:00 am -
1 stop7h 14m
Sat 10/36:19 am -
1 stop8h 26m
Deal found 8/7![JetBlue logo]()
$265
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:30 pm -
2 stops7h 55m
Fri 10/306:00 pm -
1 stop6h 59m
Deal found 8/4![American Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:27 am -
2 stops9h 35m
Mon 11/96:00 am -
1 stop7h 46m
Deal found 8/7![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/15:50 pm -
Nonstop2h 33m
Tue 9/86:00 am -
Nonstop2h 57m
Deal found 8/4![United Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:05 am -
Nonstop2h 20m
Thu 8/273:25 pm -
1 stop7h 55m
Deal found 8/6![Southwest logo]()
$265
This American Airlines deal was found by Cheapflights users on 8/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:00 am -
2 stops8h 43m
Mon 11/166:00 am -
2 stops8h 57m
Deal found 8/8![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 8/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:19 pm -
2 stops9h 37m
Wed 9/2311:50 am -
1 stop7h 29m
Deal found 8/3![Delta logo]()
$314
Last-minute flights from Illinois to New HampshireDiscover last-minute flight deals from Illinois to New Hampshire. Data last updated August 8, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to New Hampshire. Data last updated August 8, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:59 pm -
1 stop14h 10m
Sun 9/612:45 pm -
1 stop8h 19m
Deal found 8/4![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:44 pm -
1 stop12h 25m
Sun 9/612:45 pm -
1 stop8h 19m
Deal found 8/7![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 8/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:44 pm -
1 stop12h 25m
Fri 9/1112:54 pm -
1 stop6h 29m
Deal found 8/8![Frontier logo]()
$186
This Trip.com deal was found by Cheapflights users on 8/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:44 pm -
1 stop12h 25m
Sat 9/512:45 pm -
1 stop8h 23m
Deal found 8/8![Frontier logo]()
$188
This Frontier deal was found by Cheapflights users on 8/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:44 pm -
1 stop12h 25m
Tue 9/812:45 pm -
1 stop8h 23m
Deal found 8/3![Frontier logo]()
$166
This Priceline deal was found by Cheapflights users on 8/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:24 pm -
Nonstop2h 45m
Thu 9/1012:54 pm -
1 stop6h 29m
Deal found 8/4![Multiple Airlines logo]()
$187
This Super.com deal was found by Cheapflights users on 8/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:50 pm -
1 stop18h 01m
Sat 9/1912:54 pm -
1 stop6h 29m
Deal found 8/3![Frontier logo]()
$172
This Trip.com deal was found by Cheapflights users on 8/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:50 pm -
1 stop18h 01m
Mon 9/1412:54 pm -
1 stop6h 29m
Deal found 8/4![Frontier logo]()
$175
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:25 am -
Nonstop2h 20m
Tue 9/1510:05 am -
Nonstop2h 30m
Deal found 8/4![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:40 am -
2 stops6h 20m
Sat 9/197:05 am -
Nonstop2h 35m
Deal found 8/4![Southwest logo]()
$222
This CheapTickets deal was found by Cheapflights users on 8/5. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:50 pm -
1 stop18h 08m
Sat 9/2612:54 pm -
1 stop6h 29m
Deal found 8/5![Frontier logo]()
$185
This Southwest deal was found by Cheapflights users on 8/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:10 pm -
Nonstop2h 25m
Sat 9/267:05 am -
Nonstop2h 35m
Deal found 8/4![Southwest logo]()
$217
One-way flights from Illinois to New HampshireSearch for one-way flight options from Illinois to New Hampshire. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
Search for one-way flight options from Illinois to New Hampshire. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
This Super.com deal was found by Cheapflights users on 8/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:44 pm -
1 stop12h 25m
Deal found 8/4![Frontier logo]()
$88
This Frontier deal was found by Cheapflights users on 8/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:33 pm -
1 stop12h 19m
Deal found 8/3![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 8/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:50 pm -
1 stop18h 08m
Deal found 8/7![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:33 pm -
1 stop12h 19m
Deal found 8/6![Frontier logo]()
$95
This Jetabroad deal was found by Cheapflights users on 8/5. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:50 pm -
1 stop18h 01m
Deal found 8/5![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 8/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:50 pm -
1 stop18h 01m
Deal found 8/4![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:33 pm -
1 stop12h 19m
Deal found 8/4![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:44 pm -
1 stop12h 25m
Deal found 8/7![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 8/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:50 pm -
1 stop17h 32m
Deal found 8/4![Frontier logo]()
$101
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:10 pm -
Nonstop2h 15m
Deal found 8/7![Southwest logo]()
$104
This Southwest deal was found by Cheapflights users on 8/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:40 am -
Nonstop2h 15m
Deal found 8/3![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:50 pm -
Nonstop2h 20m
Deal found 8/7![Southwest logo]()
$114
Find flight deals from Illinois to New Hampshire
Keep the following information in mind while searching for Illinois to New Hampshire flight deals. Data was last updated August 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $166 (Frontier) |
One-way from | $88 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $268 |
Good round-trip deal | $235 or less |
Good one-way deal | $223 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to New Hampshire 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 August 8, 2026.
Use the filters below to find and compare flights from Illinois to New Hampshire that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoBoston
ORD Chicago O'Hare Intl - BOS Boston Logan Intl
ORDBOS
Chicago O'Hare Intl
Sat 10/10
4:40 pm-8:21 pm
Nonstop2h 41m
Boston Logan Intl
Tue 10/13
7:40 pm-9:31 pm
Nonstop2h 51m
$207
ChicagoBoston
MDW Chicago Midway - BOS Boston Logan Intl
MDWBOS
Chicago Midway
Sat 9/19
3:10 pm-6:35 pm
Nonstop2h 25m
Boston Logan Intl
Sat 9/26
7:05 am-8:40 am
Nonstop2h 35m
$217
ChicagoBoston
ORD Chicago O'Hare Intl - BOS Boston Logan Intl
ORDBOS
Chicago O'Hare Intl
Thu 10/15
9:38 am-1:06 pm
Nonstop2h 28m
Boston Logan Intl
Wed 10/21
5:00 pm-7:22 pm
Nonstop3h 22m
$231
Quickest round-trip
ChicagoManchester
MDW Chicago Midway - MHT Manchester
MDWMHT
Chicago Midway
Sat 9/5
3:10 pm-6:20 pm
Nonstop2h 10m
Manchester
Sun 9/6
8:50 am-10:10 am
Nonstop2h 20m
$235
ChicagoBoston
ORD Chicago O'Hare Intl - BOS Boston Logan Intl
ORDBOS
Chicago O'Hare Intl
Sat 10/17
6:10 am-9:34 am
Nonstop2h 24m
Boston Logan Intl
Sat 10/24
5:45 am-9:37 am
1 stop4h 52m
$237
ChicagoBoston
MDW Chicago Midway - BOS Boston Logan Intl
MDWBOS
Chicago Midway
Sat 9/19
7:40 am-11:00 am
Nonstop2h 20m
Boston Logan Intl
Tue 9/22
1:20 pm-7:05 pm
2 stops6h 45m
$237
ChicagoBoston
ORD Chicago O'Hare Intl - BOS Boston Logan Intl
ORDBOS
Chicago O'Hare Intl
Sat 9/12
9:38 am-1:06 pm
Nonstop2h 28m
Boston Logan Intl
Sun 9/13
5:15 am-9:58 am
1 stop5h 43m
$240
ChicagoBoston
MDW Chicago Midway - BOS Boston Logan Intl
MDWBOS
Chicago Midway
Wed 11/18
3:50 pm-9:40 pm
1 stop4h 50m
Boston Logan Intl
Wed 11/25
10:25 pm-12:15 am
Nonstop2h 50m
$241
ChicagoBoston
ORD Chicago O'Hare Intl - BOS Boston Logan Intl
ORDBOS
Chicago O'Hare Intl
Fri 10/23
1:00 pm-8:49 pm
1 stop6h 49m
Boston Logan Intl
Sat 10/31
5:00 pm-7:12 pm
Nonstop3h 12m
$248
ChicagoBoston
MDW Chicago Midway - BOS Boston Logan Intl
MDWBOS
Chicago Midway
Sat 10/17
9:55 am-6:20 pm
1 stop7h 25m
Boston Logan Intl
Sun 10/25
10:50 pm-12:25 am
Nonstop2h 35m
$251
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to New Hampshire
Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Illinois with our price prediction graph.
ORD-BOS
MDW-BOS
ORD-PWM
STL-BOS
ORD-MHT
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 Illinois to New Hampshire
USIL-USNH
ORD-BOS
MDW-BOS
ORD-PWM
STL-BOS
What is the cheapest month to book a flight from Illinois to New Hampshire?
Currently, January is the cheapest month in which you can book a flight from Illinois to New Hampshire (average of $312). Flying from Illinois to New Hampshire in February is currently the most expensive (average of $552). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to NH?
Find hourly flight availability from Illinois to New Hampshire. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 8, 2026.
It’s typically best to fly out from Illinois to New Hampshire in the afternoon. Doing so could potentially save you 23% on the flight price compared to flying in the evening, which is usually more expensive.
Weekly flight availability from Illinois to New Hampshire
Explore weekly flight availability from Illinois to New Hampshire. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 8, 2026.
The most flights from USIL to USNH are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Illinois to New Hampshire?
Airfare is below average for this route at the moment.
Illinois to New Hampshire flights typically cost between $329 and $469 in September.The cheapest round-trip price found within the last 5 days was $235 on American Airlines (Sep 5-Sep 6).
What is the cheapest day to fly from Illinois to New Hampshire?
Use this chart to determine the cheapest time to fly round-trip from Illinois to New Hampshire. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Illinois to New Hampshire flight should consider departing on Saturday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing New Hampshire
Get insights into the airlines that provide service to New Hampshire. 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 Hampshire. Reviews last updated August 8, 2026.
Read through reviews of airlines operating flights from Illinois to New Hampshire, such as Southwest and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Related info for your journey
Find useful and relevant information for your journey from Illinois to New Hampshire. 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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Alternative routes for Illinois to New Hampshire
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to New Hampshire by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to New Hampshire by cabin class
Find flights from Illinois to New Hampshire, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and New Hampshire flights
Browse other Illinois and New Hampshire flight options. Last updated on August 8, 2026.
Popular flight searches
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Find a return flight route from New Hampshire
Find the right flight back to Illinois after your stay in New Hampshire
Illinois to New Hampshire flights
Consider these flights traveling from Illinois to New Hampshire.
Top airline flying from Illinois to New Hampshire
Discover the top airline that operate flights from Illinois to New Hampshire. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$235 | Average$468 | FlexibilityNo cancel fee | On-time71% |