The F-35 fighter jet program is experiencing significant delays and cost overruns, according to a recent report from the U.S. Government Accountability Office. The Block 4 modernization of the F-35 is now at least $6 billion over budget and five years behind schedule. This situation could affect Canada’s plans to acquire the aircraft.

Canada intends to purchase the F-35 Block 4 version, which is expected to feature enhancements in sensors and weapon capabilities. However, the Block 4 modernization is not projected to be completed until at least 2031. The report, released on September 3, highlights ongoing challenges within the program. "The F-35 remains critical to our national defense, as well as that of our partners and allies, and is expected to retain critical roles for decades to come," the report stated. It also noted that after nearly 20 years of production, the F-35 program continues to "overpromise and underdeliver."

The Department of National Defence in Canada is closely monitoring the situation. DND spokesperson Alex Tétreault acknowledged the potential delivery delays outlined in the GAO report. "The Future Fighter Capability Project (FFCP) Office will continue to monitor the situation along with all of our F-35 partners," Tétreault said in an email.

Defence Minister David McGuinty did not comment on the latest developments regarding the F-35. Lockheed Martin spokesperson Erica Tierney emphasized that the F-35 is combat-proven and offers advanced capabilities. "In partnership with the F-35 Joint Program Office, we will deliver 170-190 F-35s this year and continue fielding Block 4 capabilities to ensure the F-35 maintains its unmatched dominance in the skies," Tierney stated.

Canada had initially planned to purchase 88 F-35s, but Prime Minister Mark Carney ordered a review of that decision amid concerns over U.S. threats to Canadian sovereignty. Currently, Canada has committed to purchasing only 16 F-35s. Former Department of National Defence procurement chief Alan Williams expressed concern over the delays in the Block 4 software upgrade, which is now in its seventh year of a $16.5 billion upgrade.

Williams stated, "The government should be particularly concerned over the delays in the implementation of the Block 4 software upgrade package and the escalating associated costs."

Despite the challenges, the Canadian military has recommended proceeding with the proposed purchase of 88 F-35s. This recommendation aligns with the Canadian Forces' original selection of the American fighter jet, reflecting close ties with U.S. military leadership.

McGuinty previously indicated that the Liberal government would follow military recommendations regarding the F-35. The DND has stated that Canada is expected to receive its first four jets in 2026, with additional deliveries in subsequent years. However, the cost of the F-35 for Canada has risen significantly, with a recent report indicating that the purchase price has jumped from $19 billion to $27.7 billion, with an additional $5.5 billion needed for full operational capability.

Analysts have raised concerns that the F-35 could represent a strategic vulnerability for Canada, as the U.S. will control software upgrades and spare parts. Retired Lt.-Gen. Yvan Blondin, who initially recommended the F-35 purchase, has suggested that Canada should reconsider its plans due to the U.S.'s increasing unpredictability.

While some retired military officers and defense analysts advocate for proceeding with the F-35 purchase to maintain strong ties with the U.S., others caution against the risks involved. The ongoing situation continues to evolve as Canada weighs its options in light of the latest developments.