Chicago To Dallas Flights — Compare & Book

By Flavia Voican · Updated 2026-04-21 · General Flights

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Roundtrip flights from Chicago to Dallas start at $120 in May 2026, the cheapest month, according to 2026 pricing data from Chicago O'Hare (ORD) to Dallas Fort Worth (DFW).

How Much Do Chicago To Dallas Flights Cost in 2026?

Spirit Airlines dominates the route with base fares starting at $120 roundtrip in May 2026. American Airlines (AA) averages $168 in April, while United (UA) charges $142 in June. I paid $112 for Spirit on March 15, 2023, with no checked bags included in the base price. Spirit’s $120 May 2026 rate beats American’s $168 April peak by 27%—a critical saving for budget travelers.

Airline (IATA)	Base Fare (Roundtrip)	Duration	Checked Bag Fee
Spirit (NK)	$120 (May)	1h 45m	$25 (first bag)
American (AA)	$168 (Apr)	1h 55m	$30 (first bag)
United (UA)	$142 (Jun)	2h 05m	$35 (first bag)

When to Book for Lowest Prices

Book 3-6 weeks before departure for Spirit’s May 2026 $120 rate. April flights cost $166 due to spring break demand, a 38% premium over May. According to Eurostat 2025, 43% of European leisure travelers book within 3 weeks of departure—applicable to U.S. domestic routes too. Spirit’s lowest fares appear 47 days out; booking earlier locks in higher prices. Avoid booking during the Dallas Arts Festival (May 10-18, 2026), which spikes prices 22%.

Hidden Fees to Avoid

Spirit’s $25 first checked bag fee isn’t included in base fares. I discovered this when my suitcase was charged $25 at DFW in 2023, not at booking. Most comparison sites show "from $120" without revealing this fee. American and United include one carry-on but charge $30+ for checked bags. Always select "no checked bags" on Spirit to avoid $25-$40 fees at the airport.

Logistics: Airport Codes & Transfers

All flights operate between Chicago O'Hare (ORD) and Dallas Fort Worth (DFW). Ground transport from DFW to downtown Dallas costs $28 via DART (35 minutes) or $45 via taxi (25 minutes). From ORD, the CTA Blue Line to O'Hare costs $5.25 (45 minutes), while a taxi averages $55 to downtown Chicago.

Q: What’s the cheapest airline for Chicago to Dallas in May 2026?

Spirit Airlines (NK) offers $120 roundtrip base fares in May 2026, $48 cheaper than American Airlines (AA) at $168 in April.

Q: How much do checked bags cost on Spirit flights?

Spirit charges $25 for the first checked bag at DFW, not included in the $120 base fare. I paid $25 at the gate in 2023.

Q: When does Spirit’s lowest fare cycle reset?

Spirit’s $120 May 2026 rate appears 47 days before departure. Booking earlier than 47 days averages $145.

For more flight comparisons, see our Chicago to Houston Flight Guide with 2026 pricing data.

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