Major carriers and budget airlines like Southwest and Frontier are locked in an intense battle for business — and that means now may be the best time in years for travelers to score a deal. NBC’s Vicky Nguyen joins TODAY with flight booking strategies to take advantage of competitive pricing.

Frontier is offering a "divorce your old airline" deal after Southwest ends its longstanding "bags fly free" policy.

Frontier Airlines is stepping up its game. The airline announced Tuesday via press release that it will offer customers a free checked bag on select flights this summer.