$94+ Cheap flights from New Hampshire to Illinois
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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from New Hampshire to Illinois with Cheapflights
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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 New Hampshire to IllinoisExplore the most affordable flight options available from New Hampshire to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
Explore the most affordable flight options available from New Hampshire to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:00 am -
Nonstop2h 54m
Sat 9/128:24 pm -
Nonstop2h 45m
Deal found 8/10![JetBlue logo]()
$163
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 9/38:20 pm -
Nonstop2h 45m
Mon 9/75:45 am -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$165
This Delta deal was found by Cheapflights users on 8/10. 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 9/14:16 pm -
Nonstop3h 04m
Wed 9/210:30 am -
Nonstop2h 29m
Deal found 8/10![Delta logo]()
$165
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:45 pm -
1 stop8h 23m
Sat 9/128:24 pm -
Nonstop2h 45m
Deal found 8/10![Multiple Airlines logo]()
$171
This Southwest deal was found by Cheapflights users on 8/10. 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 9/195:30 am -
1 stop5h 00m
Mon 9/215:45 am -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$175
This Frontier deal was found by Cheapflights users on 8/10. 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 10/2111:28 am -
1 stop10h 00m
Fri 10/239:33 pm -
1 stop12h 19m
Deal found 8/10![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 8/10. 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.
Tue 9/18:15 am -
Nonstop2h 56m
Fri 9/48:20 pm -
Nonstop2h 56m
Deal found 8/10![JetBlue logo]()
$179
This Southwest deal was found by Cheapflights users on 8/10. 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 10/610:55 am -
Nonstop2h 35m
Tue 10/203:05 pm -
2 stops6h 35m
Deal found 8/10![Southwest logo]()
$180
This Southwest deal was found by Cheapflights users on 8/10. 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 9/87:15 pm -
Nonstop2h 40m
Thu 9/107:55 pm -
1 stop11h 05m
Deal found 8/10![Southwest logo]()
$181
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:00 pm -
Nonstop3h 01m
Sat 9/193:50 pm -
1 stop18h 08m
Deal found 8/10![Multiple Airlines logo]()
$181
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 8/249:36 am -
1 stop11h 23m
Thu 8/277:44 pm -
1 stop12h 25m
Deal found 8/6![Frontier logo]()
$182
This Southwest deal was found by Cheapflights users on 8/10. 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 10/62:50 pm -
1 stop7h 30m
Wed 10/74:45 pm -
1 stop4h 55m
Deal found 8/10![Southwest logo]()
$185
Best flights from New Hampshire to IllinoisDiscover carefully curated flight deals from New Hampshire to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from New Hampshire to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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 9/58:40 am -
Nonstop2h 35m
Mon 9/75:45 am -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$166
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/35:45 am -
1 stop4h 53m
Tue 9/87:55 pm -
Nonstop2h 35m
Deal found 8/10![United Airlines logo]()
$233
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.
Sat 9/192:45 pm -
1 stop9h 23m
Wed 9/238:24 pm -
Nonstop2h 45m
Deal found 8/6![JetBlue logo]()
$234
This Delta deal was found by Cheapflights users on 8/9. 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 9/126:00 pm -
Nonstop2h 59m
Sun 9/137:35 am -
Nonstop2h 33m
Deal found 8/9![Delta logo]()
$241
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 9/115:16 pm -
1 stop21h 53m
Sun 9/136:29 am -
1 stop9h 20m
Deal found 8/6![American Airlines logo]()
$255
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:19 am -
1 stop24h 21m
Mon 10/1210:39 am -
1 stop22h 30m
Deal found 8/8![Multiple Airlines logo]()
$339
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 9/27:30 am -
Nonstop2h 35m
Wed 9/96:40 am -
Nonstop2h 15m
Deal found 8/6![Southwest logo]()
$231
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.
Sat 9/195:00 pm -
Nonstop3h 01m
Sat 9/263:00 pm -
1 stop7h 39m
Deal found 8/6![JetBlue logo]()
$234
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 9/57:30 am -
Nonstop2h 56m
Tue 9/83:05 pm -
Nonstop2h 47m
Deal found 8/7![Delta logo]()
$250
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/86:00 am -
Nonstop2h 57m
Tue 9/1510:57 am -
Nonstop2h 34m
Deal found 8/10![United Airlines logo]()
$251
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.
Sun 9/65:23 pm -
1 stop15h 07m
Sun 9/135:00 am -
1 stop10h 49m
Deal found 8/8![American Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 8/10. 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 10/179:20 am -
2 stops9h 00m
Wed 10/211:35 pm -
Nonstop2h 05m
Deal found 8/10![Southwest logo]()
$243
This JetBlue deal was found by Cheapflights users on 8/9. 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 9/35:10 am -
1 stop9h 29m
Sat 9/199:38 am -
Nonstop2h 28m
Deal found 8/9![JetBlue logo]()
$244
This United Airlines deal was found by Cheapflights users on 8/9. 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 10/167:55 am -
Nonstop2h 56m
Sun 10/186:10 am -
Nonstop2h 23m
Deal found 8/9![United Airlines logo]()
$255
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/73:18 pm -
1 stop4h 57m
Sun 1/107:00 am -
1 stop6h 37m
Deal found 8/6![Delta logo]()
$260
This Southwest deal was found by Cheapflights users on 8/10. 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 10/205:50 pm -
Nonstop2h 25m
Thu 10/227:45 am -
Nonstop2h 05m
Deal found 8/10![Southwest logo]()
$245
This JetBlue deal was found by Cheapflights users on 8/10. 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 9/68:10 am -
Nonstop2h 56m
Tue 9/88:20 pm -
Nonstop2h 56m
Deal found 8/10![JetBlue logo]()
$250
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:30 am -
2 stops7h 40m
Sun 9/66:30 pm -
Nonstop2h 15m
Deal found 8/8![Southwest logo]()
$250
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/94:57 pm -
Nonstop2h 57m
Fri 9/112:10 pm -
Nonstop2h 44m
Deal found 8/10![United Airlines logo]()
$276
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.
Thu 8/208:15 am -
Nonstop2h 56m
Wed 8/2611:01 am -
Nonstop2h 27m
Deal found 8/5![JetBlue logo]()
$255
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:40 pm -
1 stop5h 44m
Mon 8/246:59 am -
2 stops9h 01m
Deal found 8/8![Delta logo]()
$301
This JetBlue deal was found by Cheapflights users on 8/10. 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 9/185:00 pm -
Nonstop3h 01m
Sat 9/193:00 pm -
1 stop7h 39m
Deal found 8/10![JetBlue logo]()
$258
This Southwest deal was found by Cheapflights users on 8/10. 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.
Mon 8/316:40 pm -
Nonstop2h 40m
Fri 9/45:45 am -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$261
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 9/2612:36 pm -
1 stop7h 39m
Tue 9/297:00 am -
1 stop5h 16m
Deal found 8/7![Delta logo]()
$309
This JetBlue deal was found by Cheapflights users on 8/9. 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 9/182:45 pm -
1 stop9h 23m
Mon 9/218:24 pm -
Nonstop2h 45m
Deal found 8/9![JetBlue logo]()
$258
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.
Fri 9/117:40 am -
Nonstop2h 30m
Mon 9/146:10 pm -
Nonstop2h 25m
Deal found 8/7![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/196:06 am -
1 stop5h 51m
Sat 9/196:22 pm -
1 stop4h 37m
Deal found 8/10![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 8/9. 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 10/214:15 pm -
2 stops8h 37m
Mon 10/266:30 am -
2 stops7h 28m
Deal found 8/9![Delta logo]()
$317
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:19 am -
1 stop8h 26m
Sun 9/133:00 pm -
1 stop7h 39m
Deal found 8/8![JetBlue logo]()
$262
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:50 am -
1 stop6h 00m
Thu 9/35:45 am -
Nonstop2h 15m
Deal found 8/7![Southwest logo]()
$265
Last-minute flights from New Hampshire to IllinoisDiscover last-minute flight deals from New Hampshire to Illinois. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from New Hampshire to Illinois. Data last updated August 11, 2026 and is based on user searches.
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 8/249:36 am -
1 stop11h 23m
Thu 8/277:44 pm -
1 stop12h 25m
Deal found 8/6![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 8/10. 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 8/319:36 am -
1 stop11h 23m
Sat 9/57:44 pm -
1 stop12h 25m
Deal found 8/10![Frontier logo]()
$176
This Delta deal was found by Cheapflights users on 8/10. 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 9/14:16 pm -
Nonstop3h 04m
Wed 9/210:30 am -
Nonstop2h 29m
Deal found 8/10![Delta logo]()
$165
This Super.com deal was found by Cheapflights users on 8/10. 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.
Tue 9/18:15 am -
Nonstop2h 56m
Fri 9/48:20 pm -
Nonstop2h 56m
Deal found 8/10![JetBlue logo]()
$179
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:20 pm -
Nonstop3h 06m
Thu 9/109:38 am -
Nonstop2h 28m
Deal found 8/10![JetBlue logo]()
$185
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 9/38:20 pm -
Nonstop2h 45m
Mon 9/75:45 am -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$165
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:00 am -
Nonstop2h 54m
Sat 9/128:24 pm -
Nonstop2h 45m
Deal found 8/10![JetBlue logo]()
$163
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:45 pm -
1 stop8h 23m
Sat 9/128:24 pm -
Nonstop2h 45m
Deal found 8/10![Multiple Airlines logo]()
$171
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:45 pm -
1 stop8h 23m
Sat 9/123:50 pm -
1 stop18h 08m
Deal found 8/10![Frontier logo]()
$186
This Southwest deal was found by Cheapflights users on 8/10. 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 9/87:15 pm -
Nonstop2h 40m
Thu 9/107:55 pm -
1 stop11h 05m
Deal found 8/10![Southwest logo]()
$181
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:00 pm -
Nonstop3h 01m
Sat 9/193:50 pm -
1 stop18h 08m
Deal found 8/10![Multiple Airlines logo]()
$181
This Southwest deal was found by Cheapflights users on 8/10. 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 9/195:30 am -
1 stop5h 00m
Mon 9/215:45 am -
Nonstop2h 15m
Deal found 8/10![Southwest logo]()
$175
One-way flights from New Hampshire to IllinoisSearch for one-way flight options from New Hampshire to Illinois. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
Search for one-way flight options from New Hampshire to Illinois. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This American Airlines deal was found by Cheapflights users on 8/10. 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 10/215:16 pm -
1 stop6h 14m
Deal found 8/10![American Airlines logo]()
$94
This Southwest deal was found by Cheapflights users on 8/9. 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.
Fri 9/116:25 pm -
Nonstop2h 20m
Deal found 8/9![Southwest logo]()
$97
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.
Thu 11/512:35 pm -
1 stop10h 18m
Deal found 8/7![Frontier logo]()
$100
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:17 am -
1 stop12h 42m
Deal found 8/7![Frontier logo]()
$100
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.
Wed 9/95:15 am -
1 stop5h 43m
Deal found 8/7![JetBlue logo]()
$102
This Super.com deal was found by Cheapflights users on 8/9. 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.
Sun 8/3012:45 pm -
1 stop11h 02m
Deal found 8/9![Frontier logo]()
$103
This Priceline deal was found by Cheapflights users on 8/10. 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.
Fri 11/612:35 pm -
1 stop10h 18m
Deal found 8/10![Frontier logo]()
$104
This Delta deal was found by Cheapflights users on 8/10. 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 10/214:15 pm -
2 stops8h 37m
Deal found 8/10![Delta logo]()
$104
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 9/46:40 pm -
Nonstop2h 45m
Deal found 8/10![Southwest logo]()
$105
This Delta deal was found by Cheapflights users on 8/10. 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.
Fri 9/48:50 pm -
Nonstop2h 54m
Deal found 8/10![Delta logo]()
$105
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:43 pm -
1 stop6h 15m
Deal found 8/6![JetBlue logo]()
$108
This Southwest deal was found by Cheapflights users on 8/10. 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 1/165:15 am -
2 stops7h 05m
Deal found 8/10![Southwest logo]()
$110
Find flight deals from New Hampshire to Illinois
Keep the following information in mind while searching for New Hampshire to Illinois flight deals. Data was last updated August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $163 (Cheapflightsfares) |
One-way from | $94 (American Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $245 |
Good round-trip deal | $354 or less |
Good one-way deal | $214 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from New Hampshire to Illinois 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 11, 2026.
Use the filters below to find and compare flights from New Hampshire to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonChicago
BOS Boston Logan Intl - MDW Chicago Midway
BOSMDW
Boston Logan Intl
Sat 9/5
8:40 am-10:15 am
Nonstop2h 35m
Chicago Midway
Mon 9/7
5:45 am-9:00 am
Nonstop2h 15m
$166
BostonChicago
BOS Boston Logan Intl - MDW Chicago Midway
BOSMDW
Boston Logan Intl
Wed 9/2
7:30 am-9:05 am
Nonstop2h 35m
Chicago Midway
Wed 9/9
6:40 am-9:55 am
Nonstop2h 15m
$231
BostonChicago
BOS Boston Logan Intl - ORD Chicago O'Hare Intl
BOSORD
Boston Logan Intl
Thu 9/3
5:45 am-9:38 am
1 stop4h 53m
Chicago O'Hare Intl
Tue 9/8
7:55 pm-11:30 pm
Nonstop2h 35m
$233
BostonChicago
BOS Boston Logan Intl - ORD Chicago O'Hare Intl
BOSORD
Boston Logan Intl
Sat 9/19
2:45 pm-11:08 pm
1 stop9h 23m
Chicago O'Hare Intl
Wed 9/23
8:24 pm-12:09 am
Nonstop2h 45m
$234
BostonChicago
BOS Boston Logan Intl - ORD Chicago O'Hare Intl
BOSORD
Boston Logan Intl
Sat 9/19
5:00 pm-7:01 pm
Nonstop3h 01m
Chicago O'Hare Intl
Sat 9/26
3:00 pm-11:39 pm
1 stop7h 39m
$234
BostonChicago
BOS Boston Logan Intl - ORD Chicago O'Hare Intl
BOSORD
Boston Logan Intl
Sat 9/12
6:00 pm-7:59 pm
Nonstop2h 59m
Chicago O'Hare Intl
Sun 9/13
7:35 am-11:08 am
Nonstop2h 33m
$241
ManchesterChicago
MHT Manchester - MDW Chicago Midway
MHTMDW
Manchester
Sat 10/17
9:20 am-5:20 pm
2 stops9h 00m
Chicago Midway
Wed 10/21
1:35 pm-4:40 pm
Nonstop2h 05m
$243
BostonChicago
BOS Boston Logan Intl - ORD Chicago O'Hare Intl
BOSORD
Boston Logan Intl
Thu 9/3
5:10 am-1:39 pm
1 stop9h 29m
Chicago O'Hare Intl
Sat 9/19
9:38 am-1:06 pm
Nonstop2h 28m
$244
Quickest round-trip
ManchesterChicago
MHT Manchester - MDW Chicago Midway
MHTMDW
Manchester
Tue 10/20
5:50 pm-7:15 pm
Nonstop2h 25m
Chicago Midway
Thu 10/22
7:45 am-10:50 am
Nonstop2h 05m
$245
BostonChicago
BOS Boston Logan Intl - ORD Chicago O'Hare Intl
BOSORD
Boston Logan Intl
Sat 9/5
7:30 am-9:26 am
Nonstop2h 56m
Chicago O'Hare Intl
Tue 9/8
3:05 pm-6:52 pm
Nonstop2h 47m
$250
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from New Hampshire to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from New Hampshire with our price prediction graph.
ORH-ORD
MHT-MDW
BOS-MDW
BOS-ORD
BOS-RFD
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 New Hampshire to Illinois
USNH-USIL
ORH-ORD
MHT-MDW
BOS-MDW
BOS-ORD
What is the cheapest month to book a flight from New Hampshire to Illinois?
Currently, August is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $379). Flying from New Hampshire to Illinois in March is currently the most expensive (average of $571). 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 NH to IL?
Find hourly flight availability from New Hampshire to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2026.
It’s typically best to fly out from New Hampshire to Illinois at noon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from New Hampshire to Illinois
Explore weekly flight availability from New Hampshire to Illinois. 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 11, 2026.
The most flights from USNH to USIL 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 (2 on average).
How much does it cost to fly round-trip from New Hampshire to Illinois?
Airfare is below average for this route at the moment.
New Hampshire to Illinois flights typically cost between $293 and $456 in September.The cheapest round-trip price found within the last 5 days was $235 on American Airlines (Sep 5-Sep 6).
How far ahead should I book a flight from New Hampshire to Illinois?
Booking 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from New Hampshire to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from New Hampshire to Illinois?
Use this chart to determine the cheapest time to fly round-trip from New Hampshire to Illinois. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their New Hampshire to Illinois flight should consider departing on Wednesday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated August 11, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from New Hampshire to Illinois to help guide your decision. 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.
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from New Hampshire to Illinois. 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 New Hampshire to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from New Hampshire to Illinois by cabin class
Find flights from New Hampshire to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
New Hampshire and Illinois flights
Browse other New Hampshire and Illinois flight options. Last updated on August 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to New Hampshire after your stay in Illinois
New Hampshire to Illinois flights
Consider these flights traveling from New Hampshire to Illinois.
Top 3 airlines flying from New Hampshire to Illinois
Discover the top 3 airlines that operate flights from New Hampshire to Illinois. 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 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$103 | Average$348 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$253 | Average$459 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$260 | Average$509 | FlexibilityNo cancel fee | On-time71% |