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Cheap flights from Illinois to Knoxville (TYS) from $55

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — TYS
Apr 23 — Apr 301
From?
To?
Tue 4/23
Tue 4/30
1 adult, Economy
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How far in advance should I book a flight from Illinois to Knoxville?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 43 days in advance, which can save you up to 160% on flights from Illinois to Knoxville compared to booking the week you need them. Waiting 43 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $249. For sooner than that we have options available in the next 3 days from $289.

What is the cheapest month to fly from Illinois to Knoxville?

Our data shows that September tends to be the cheapest month to fly to Knoxville from Illinois. Users have commonly found prices around $265 for the month, but tickets can be as low as $61. Due to multiple factors, prepare for potentially higher prices in May.

When is the cheapest time to fly from Illinois to Knoxville (IL - TYS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Knoxville as you normally would.

Cheap Frontier flights from Illinois to Knoxville

Explore cheap flight options specifically provided by Frontier for the route between Illinois and Knoxville. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 18, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from Illinois to Knoxville. Come back soon if you're not finding the exact deal you're looking for.
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Wed 5/810:51 amTYS - ORD
1 stop15h 05mFrontier
Deal found 4/17$103
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Wed 5/810:51 amTYS - ORD
1 stop15h 05mFrontier
Deal found 4/17$107
Sat 5/118:17 pmMDW - TYS
1 stop9h 41mFrontier
Sun 5/1910:07 pmTYS - MDW
1 stop20h 28mFrontier
Deal found 4/17$113
Tue 5/146:27 pmORD - TYS
1 stop14h 24mFrontier
Tue 5/2110:04 pmTYS - ORD
1 stop28h 04mFrontier
Deal found 4/17$122
Wed 5/158:25 amORD - TYS
1 stop22h 52mFrontier
Sun 5/1910:07 pmTYS - ORD
1 stop28h 01mFrontier
Deal found 4/17$133
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Tue 5/78:48 amTYS - ORD
1 stop17h 11mFrontier
Deal found 4/18$134
Thu 5/2310:22 pmMDW - TYS
1 stop20h 17mFrontier
Thu 5/309:55 pmTYS - MDW
1 stop15h 25mFrontier
Deal found 4/17$141
Mon 4/298:25 amORD - TYS
1 stop22h 23mFrontier
Wed 5/110:51 amTYS - ORD
1 stop15h 05mFrontier
Deal found 4/17$143
Fri 5/106:27 pmORD - TYS
1 stop14h 29mFrontier
Fri 5/179:02 pmTYS - ORD
1 stop28h 16mFrontier
Deal found 4/18$145

Cheap United Airlines flights from Illinois to Knoxville

Explore cheap flight options specifically provided by United Airlines for the route between Illinois and Knoxville. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 18, 2024.
Have a look at some of the cheapest available United Airlines flights departing from Illinois and landing in Knoxville. Make sure to examine the flight information before completing your reservation.
Sat 5/47:30 amORD - TYS
Nonstop1h 46mUnited Airlines
Wed 5/810:51 amTYS - ORD
Nonstop1h 59mUnited Airlines
Deal found 4/17$174
Fri 9/207:58 pmORD - TYS
Nonstop1h 42mUnited Airlines
Sun 9/227:00 amTYS - ORD
Nonstop1h 54mUnited Airlines
Deal found 4/16$229
Sat 6/17:30 amORD - TYS
Nonstop1h 45mUnited Airlines
Sat 7/65:50 amTYS - ORD
1 stop4h 35mUnited Airlines
Deal found 4/17$246
Thu 9/127:54 pmORD - TYS
Nonstop1h 42mUnited Airlines
Sun 9/157:00 amTYS - ORD
Nonstop1h 54mUnited Airlines
Deal found 4/17$254
Fri 4/266:15 pmORD - TYS
Nonstop1h 57mUnited Airlines
Mon 4/2911:00 amTYS - ORD
Nonstop2h 03mUnited Airlines
Deal found 4/17$434
Wed 4/248:47 amSTL - TYS
2 stops13h 18mUnited Airlines
Tue 4/305:33 pmTYS - STL
1 stop5h 16mUnited Airlines
Deal found 4/17$441
Fri 4/266:15 pmORD - TYS
Nonstop1h 57mUnited Airlines
Sun 4/287:00 amTYS - ORD
Nonstop2h 04mUnited Airlines
Deal found 4/17$444
Fri 4/267:30 amORD - TYS
Nonstop1h 49mUnited Airlines
Sun 4/287:00 amTYS - ORD
Nonstop2h 04mUnited Airlines
Deal found 4/17$524
Fri 4/267:30 amORD - TYS
Nonstop1h 49mUnited Airlines
Mon 4/297:00 amTYS - ORD
Nonstop2h 04mUnited Airlines
Deal found 4/18$579

Cheap Illinois to Knoxville flights in April & May 2024

Find cheap flight options from Illinois to Knoxville specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,192,047 searches. Prices were last updated on April 18, 2024.
Listed are some of the best fares we've found on flights departing from Illinois to Knoxville in 2024. For more flight deals, be sure to check back very soon.
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Wed 5/810:51 amTYS - ORD
1 stop15h 05mFrontier
Deal found 4/17$103
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Wed 5/810:51 amTYS - ORD
1 stop15h 05mFrontier
Deal found 4/17$107
Tue 5/146:27 pmORD - TYS
1 stop14h 24mFrontier
Tue 5/2110:04 pmTYS - ORD
1 stop28h 04mFrontier
Deal found 4/17$122
Wed 5/158:25 amORD - TYS
1 stop22h 52mFrontier
Sun 5/1910:07 pmTYS - ORD
1 stop28h 01mFrontier
Deal found 4/17$133
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Tue 5/78:48 amTYS - ORD
1 stop17h 11mFrontier
Deal found 4/18$134
Mon 4/298:25 amORD - TYS
1 stop22h 23mFrontier
Wed 5/110:51 amTYS - ORD
1 stop15h 05mFrontier
Deal found 4/17$143
Fri 5/106:27 pmORD - TYS
1 stop14h 29mFrontier
Fri 5/179:02 pmTYS - ORD
1 stop28h 16mFrontier
Deal found 4/18$145
Sat 4/278:25 amORD - TYS
1 stop21h 33mFrontier
Sat 5/410:58 amTYS - ORD
1 stop14h 58mFrontier
Deal found 4/17$147
Sat 5/48:25 amORD - TYS
1 stop21h 33mFrontier
Tue 5/78:48 amTYS - ORD
1 stop17h 11mFrontier
Deal found 4/17$148

Illinois to Knoxville 2024 flight deals

Discover exclusive flight deals for travel between Illinois and Knoxville in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 18, 2024.
Listed are some of the best fares we've found on flights departing from Illinois to Knoxville in 2024. For more flight deals, be sure to check back very soon.
Thu 5/1611:06 pmSTL - TYS
1 stop19h 56mFrontier
Thu 5/239:55 pmTYS - STL
1 stop10h 13mFrontier
Deal found 4/18$173
Fri 5/175:01 amMDW - TYS
1 stop14h 01mFrontier
Fri 5/248:43 pmTYS - MDW
1 stop25h 23mFrontier
Deal found 4/17$192
Sat 5/117:59 pmORD - TYS
Nonstop1h 42mAmerican Airlines
Wed 7/318:00 amTYS - ORD
Nonstop1h 54mAmerican Airlines
Deal found 4/17$194
Thu 5/1610:22 pmMDW - TYS
1 stop20h 40mFrontier
Thu 5/239:55 pmTYS - MDW
1 stop15h 25mFrontier
Deal found 4/16$194
Thu 4/256:27 pmORD - TYS
1 stop14h 29mFrontier
Sun 4/287:58 amTYS - ORD
1 stop18h 01mFrontier
Deal found 4/17$197
Sat 8/37:05 amORD - TYS
1 stop4h 00mDelta
Sat 8/102:30 pmTYS - ORD
1 stop6h 18mDelta
Deal found 4/16$198
Tue 7/3010:11 amMDW - TYS
1 stop3h 40mDelta
Sun 8/47:15 amTYS - MDW
1 stop6h 29mDelta
Deal found 4/16$198
Sat 5/48:18 amORD - TYS
Nonstop1h 45mAmerican Airlines
Tue 5/78:17 amTYS - ORD
Nonstop1h 52mAmerican Airlines
Deal found 4/17$199
Fri 5/35:30 amMDW - TYS
1 stop27h 26mFrontier
Mon 5/610:51 amTYS - MDW
1 stop25h 47mFrontier
Deal found 4/17$200

Non-stop flights to Knoxville from Illinois

Discover non-stop flight options from Illinois to Knoxville. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 18, 2024.
For a shorter flight, select one of these non-stop flights from Illinois to Knoxville. Users seeking other options on flights from Illinois to Knoxville should update the search form at the top of the page.
Sat 5/117:59 pmORD - TYS
Nonstop1h 42mAmerican Airlines
Wed 7/318:00 amTYS - ORD
Nonstop1h 54mAmerican Airlines
Deal found 4/17$194
Sat 5/48:18 amORD - TYS
Nonstop1h 45mAmerican Airlines
Tue 5/78:17 amTYS - ORD
Nonstop1h 52mAmerican Airlines
Deal found 4/17$199
Fri 5/243:12 pmMDW - TYS
Nonstop1h 28mAllegiant Air
Mon 5/271:50 pmTYS - MDW
Nonstop1h 32mAllegiant Air
Deal found 4/17$213
Fri 6/281:35 pmORD - TYS
Nonstop1h 35mAmerican Airlines
Tue 7/27:23 amTYS - ORD
Nonstop1h 52mAmerican Airlines
Deal found 4/17$214
Tue 6/118:20 amORD - TYS
Nonstop1h 54mAmerican Airlines
Sun 6/168:00 amTYS - ORD
Nonstop1h 52mAmerican Airlines
Deal found 4/17$219
Sat 6/18:28 amORD - TYS
Nonstop1h 44mAmerican Airlines
Sat 6/84:40 pmTYS - ORD
Nonstop1h 54mAmerican Airlines
Deal found 4/18$244
Mon 6/241:35 pmORD - TYS
Nonstop1h 35mAmerican Airlines
Mon 7/18:00 amTYS - ORD
Nonstop1h 52mAmerican Airlines
Deal found 4/17$269
Fri 5/36:15 pmORD - TYS
Nonstop1h 53mUnited Airlines
Mon 5/65:33 pmTYS - ORD
Nonstop1h 54mUnited Airlines
Deal found 4/18$274
Tue 5/147:30 amORD - TYS
Nonstop1h 46mUnited Airlines
Tue 5/217:00 amTYS - ORD
Nonstop2h 00mUnited Airlines
Deal found 4/17$279

Illinois to Knoxville flights leaving soon

Find last-minute flight options from Illinois to Knoxville for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 18, 2024.
Users seeking a last-minute flight from Illinois to Knoxville should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.
Sat 4/278:25 amORD - TYS
1 stop21h 33mFrontier
Sat 5/410:58 amTYS - ORD
1 stop14h 58mFrontier
Deal found 4/17$147
Sat 4/278:25 amORD - TYS
1 stop21h 33mFrontier
Tue 4/308:48 amTYS - ORD
1 stop17h 11mFrontier
Deal found 4/17$187
Thu 4/256:27 pmORD - TYS
1 stop14h 29mFrontier
Sun 4/287:58 amTYS - ORD
1 stop18h 01mFrontier
Deal found 4/17$197
Thu 4/256:27 pmORD - TYS
1 stop14h 29mFrontier
Sun 4/287:58 amTYS - ORD
1 stop18h 01mFrontier
Deal found 4/17$198
Fri 4/265:30 amMDW - TYS
1 stop27h 26mFrontier
Mon 4/2910:51 amTYS - MDW
1 stop25h 47mFrontier
Deal found 4/17$198
Fri 4/266:27 pmORD - TYS
1 stop14h 29mFrontier
Sun 4/287:58 amTYS - ORD
1 stop18h 01mFrontier
Deal found 4/17$207
Tue 4/2310:55 pmMDW - TYS
1 stop9h 56mFrontier
Thu 4/258:13 amTYS - MDW
1 stop9h 52mFrontier
Deal found 4/17$218
Sat 4/276:30 pmORD - TYS
Nonstop1h 59mAmerican Airlines
Tue 4/306:37 pmTYS - ORD
Nonstop1h 53mAmerican Airlines
Deal found 4/17$219
Thu 4/256:27 pmORD - TYS
1 stop14h 29mFrontier
Sun 4/287:58 amTYS - ORD
1 stop18h 01mFrontier
Deal found 4/18$223

One-way flights to Knoxville from Illinois

Search for one-way flight options from Illinois to Knoxville. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 18, 2024.
If you're seeking multiple options on one-way flights from Illinois to Knoxville, be sure to check out these deals, which are updated often. Users needing a return flight from Illinois to Knoxville should utilize the search form above.
Sat 5/189:08 pmMDW - TYS
1 stop9h 49mFrontier
Deal found 4/17$55
Sat 5/185:56 pmORD - TYS
1 stop13h 01mFrontier
Deal found 4/17$59
Sat 5/118:17 pmMDW - TYS
1 stop9h 41mFrontier
Deal found 4/17$59
Mon 6/249:08 pmMDW - TYS
Nonstop1h 25mAllegiant Air
Deal found 4/17$64
Mon 6/108:34 pmMDW - TYS
Nonstop1h 25mAllegiant Air
Deal found 4/17$67
Fri 6/289:08 pmMDW - TYS
Nonstop1h 25mAllegiant Air
Deal found 4/17$68
Wed 4/248:25 amORD - TYS
1 stop21h 58mFrontier
Deal found 4/17$79
Wed 8/75:10 amMDW - TYS
1 stop11h 07mFrontier
Deal found 4/18$79
Wed 5/158:25 amORD - TYS
1 stop22h 52mFrontier
Deal found 4/17$85

Find flights from Illinois to Knoxville within your budget

Customize your flight search to find flights from Illinois to Knoxville 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 3,192,047 searches. Data last updated April 18, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$88 - $188

Route

Depart

Return

Price

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Fri 6/21

Nonstop1h 25m

Knoxville McGhee Tyson

Mon 6/24

Nonstop1h 34m

$88

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Mon 7/29

Nonstop1h 26m

Knoxville McGhee Tyson

Mon 8/5

Nonstop1h 32m

$98

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 5/4

1 stop21h 33m

Knoxville McGhee Tyson

Wed 5/8

1 stop15h 05m

$103

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Sat 5/4

1 stop9h 41m

Knoxville McGhee Tyson

Wed 5/8

1 stop22h 45m

$103

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Fri 6/28

Nonstop1h 25m

Knoxville McGhee Tyson

Mon 7/8

Nonstop1h 32m

$104

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Fri 8/16

Nonstop1h 29m

Knoxville McGhee Tyson

Sun 8/18

1 stop13h 30m

$160

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Thu 8/29

Nonstop1h 36m

Knoxville McGhee Tyson

Thu 9/5

Nonstop1h 57m

$169

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 5/4

Nonstop1h 46m

Knoxville McGhee Tyson

Wed 5/8

Nonstop1h 59m

$174

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 8/10

1 stop5h 58m

Knoxville McGhee Tyson

Wed 8/14

1 stop5h 04m

$188

Flights are sorted by cheapest first

Deals found on 4/18

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated April 18, 2024.
See what other customers who have flown with Frontier, United Airlines and Allegiant Air from Illinois to Knoxville have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
11,104 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.5

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
11,104 reviews
Delta
8.1
Very good
11,104 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.5

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

WestJet
7.5
Good
3,010 reviews
Delta
8.1
Very good
11,104 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.5

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Allegiant Air
7.5
Good
1,046 reviews
Delta
8.1
Very good
11,104 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.5

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,341 reviews
Delta
8.1
Very good
11,104 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.5

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,963 reviews
Delta
8.1
Very good
11,104 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.5

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Related info for your journey

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

  • What airport do you fly into for flights to Knoxville from Illinois?

    Knoxville McGhee Tyson (TYS), located 11.3 mi from the city center, is the airport you fly into when you book flights from Illinois to Knoxville.

  • Can I find flights from Illinois to Knoxville for under $100 on Cheapflights?

    Yes, there are multiple flights from Illinois to Knoxville for under $100. The cheapest flight booked recently is on Allegiant Air for just $88, but on average you can expect to pay $119.

  • Are there nonstop flights from Illinois to Knoxville for under $200 on Cheapflights?

    Cheapflights has at least 20 direct flights from Illinois to Knoxville under $200. A good price for a nonstop flight from Illinois to Knoxville is less than $287.

  • Are there last-minute flights available from Illinois to Knoxville for under $200?

    There are currently 20+ open flights from Illinois to Knoxville within the next 7 days for less than $200.

  • What are the most popular routes from Illinois to Knoxville?

    While some choose either Chicago Midway - Knoxville McGhee Tyson or Lambert-St Louis - Knoxville McGhee Tyson, Chicago O'Hare Intl - Knoxville McGhee Tyson is the most popular route from Illinois to Knoxville.

  • What are the most popular airlines that fly from Illinois to Knoxville?

    When booking a flight from Illinois to Knoxville, you may want to consider flying on American Airlines, Delta or Allegiant Air as they are the most popular for this route.

  • What are the most reliable airlines from Illinois to Knoxville?

    No one likes to see their flight delayed. When booking a flight from Illinois to Knoxville consider choosing Lufthansa (96%), Republic Airways (95%) or Air Wisconsin (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Knoxville?

    While on average a flight from Illinois to Knoxville is generally $305, our data shows the cheapest flight currently is $196. When looking at the most popular route, (Chicago O'Hare Intl - Knoxville McGhee Tyson), you can expect to pay $159 for that flight.

  • What does ORD to TYS mean?

    This is defined as Chicago O'Hare Intl Airport (ORD) and Knoxville McGhee Tyson Airport (TYS). Codes like Knoxville McGhee Tyson Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI).

  • Can I find deals for flights from Illinois to Knoxville that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to Knoxville flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to Knoxville with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to Knoxville flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Illinois to Knoxville that include hotel bookings?

    Yes. In addition to deals on Illinois to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Knoxville.

  • Can I find deals for business class flights from Illinois to Knoxville?

    Yes. Cheapflights offers flight deals from Illinois to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Illinois to Knoxville that allow pets onboard?

    Many airlines flying from Illinois to Knoxville offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to Knoxville?

    Yes, you can often find last-minute deals on Illinois to Knoxville flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to Knoxville flight deals updated?

    The Illinois to Knoxville flight deals you see on this page were last updated on 4/18.

See more FAQs

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Top 4 airlines flying from Illinois to Knoxville

Discover the top 4 airlines that operate flights from Illinois to Knoxville. 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 3,192,047 searches. Data last updated April 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$63Average$104FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights
American AirlinesCheapest$164Average$397FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$166Average$334FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$180Average$383FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Dallas to Denver flights
New York to Cancún flights
Detroit to Chicago flights
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Search flights from Illinois to Knoxville by cabin class

Find flights from Illinois to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Illinois to Knoxville

Find hourly flight availability from Illinois to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 18, 2024.
1%of flight departuresEarly morningMidnight to 6 am
21%of flight departuresMorning6 am to noon
78%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Fly with Cheapflights

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How does Cheapflights help users find flights from Illinois to Knoxville?

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Knoxville?

Cheapflights simply makes it quick and affordable to book flights from Illinois to Knoxville by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Illinois to Knoxville with no change fees?

Yes, we can. To see specific flights from Illinois to Knoxville with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Knoxville become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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